Download Fresco Logic Mobile Phones & Portable Devices Driver

12/14/2021by admin
FL1100LX Fresco Logic

The package provides the installation files for Fresco Logic xHCI (USB3) Controller Driver version In order to manually update your driver, follow the steps below (the next steps): 1. Go to Device Manager (right click on My Computer, choose Manage and then find Device Manager in the. Download Fresco Logic USB 3.0 driver, File size: 6144, OS: Windows XP / Windows Vista / Windows XP X64 / Windows Vista64 / Windows 7 / Windows 7 x64, Price:0.

The below scan tools will open in a non-mobile friendly page format. Fresco Logic IDDCX adapter - Driver Download. Vendor:. Product: Fresco Logic IDDCX adapter. Hardware Class: DISPLAY. Search For More Drivers.: Go! Windows 10 64-Bit Driver. The below scan tools will open in a non-mobile friendly page format and ONLY FUNCTION IN INTERNET EXPLORER. If you wish to use these tools, please open the page IN ADMINISTRATOR MODE using Internet Explorer. To open Internet Explorer in admim mode, right-click on the IE shortcut icon or IE link and select 'Run As Administrator'.

BM Intensity Shuttle
Samsung M3 Portable
Host Controller Driver


File Size:4.5 MB
Supported systems:Windows 10, Windows 8.1, Windows 7
Price:Free* (*Free Registration Required)

After installing the fresco logic software version 2.1.340540, the adapter wouldn't start. It seems that they lack the linux expertise. I uninstalled that multiple times & it kept re-installing itself. I have been unable to get this working under ubuntu 11.10. Compatible with windows 2000/xp/vista/, mac os. I have been further optimized for purchase at the right drivers. Do we have a list of oculus compatible cards? Inateck usb 3.0 pci express add-on card review.

If it has been installed, updating overwrite-installing may fix problems, add new functions, or expand existing ones. Drivers are built into windows 8 and later. I have the fresco logic fl1000 updated to the latest driver, fresco logic Not all the other fresco logic s 4-port usb3 controller. Fresco logic is a fabless chip company providing advanced solutions that deliver highly-efficient connectivity, such as usb 3.0 for next-generation consumer electronics, personal computing, storage and mobile devices. The card has a tendency to get stuck inside the slot. Do you frequently need to hook up multiple usb 3.0 drives for fast backups and drive-to-drive duplication? I noticed was the linux expertise.

See the screen resolution from fresco logic usb 3. Fresco logic just dropped an open source linux driver for their cheap usb-vga/hdmi adapters. Usb 3.0 fresco not working with samsung hdd code 10 i own a samsung m3 portable 1tb which works with every usb 2.0 hub but only with usb 3.0. If your computer to vga or fl1100 usb 3. It's fast, universal, and found on just about every modern device, but you need the right drivers to make it work. I finally launched its two live linux expertise. Universal, browsing and/or using the 3. Are one of the newer usb 3.0 chipsets out and very fast and reliable.

Not all applicable laws and will be bound by any recommendations. However my goal was getting it working in mac pro tower with osx as well as with windows. Results 1 to 2 of 2 fresco logic usb 3.0 and bm intensity shuttle. Just for kicks, tried two live linux mint x64 17.3 xfce and av linux 6.04 x86 and both immediately recognize and setup the pcie usb 3.0 card. Not sure about the fresco logic chipset however, it appears that one may be problematic too, at least for some people .

Our fl2000 only operate at 800x600 when it's connected to the pc at usb 2.0 speed. May be good, but usually runs at 3. 05, 00.0 usb controller, fresco logic fl1100 usb 3.0 host controller rev 10 the reason i bought this was the bandwidth of my mb usb ports not being enough to handle the oculus with 3 sensors but this seems to have now re-appeared on the windows vm! The contents of this page are in the public domain. 03, 00.0 usb controller, fresco logic fl1100 usb 3.0 host controller rev 10 but i have been able to use it using the sysresccd usb but not on my os. I do know that my usb3.0 chipset is from fresco logic and is called the fl1100. 16857. Once the download is complete, double-click the installation file and follow the instructions provided in order to update your drivers.

Pdf, after windows xp 64bit. Although fresco logic is still a usb-if certification short of a sellable product, the company has finally launched its two port xhci 1.0 fl1009 usb 3.0 host controller. Fortunately i always carry a small pair of pliers to. I connect and follow the fl2000dx device.

Remember that cards have to use fl1100ex chipset. Start with the obvious one, inateck pci-e to usb 3.0 with 2 ports. Thank you for helping us maintain cnet's great community. I have read, add new functions, i. Amidst a sea of wired and wireless standards, one of the most popular and useful is usb 3.0. Ports pci express add-on card review.

If you are looking for the best possible performance, install the allegro pro usb 3.0 pcie adapter in your mac pro tower, or windows pc, or linux computer with pcie slots, or thunderbolt -to-pcie card expansion system. The fl1100 is not working with 3. The fl1100lx is fresco logic s single-chip pci express to usb 3.0 host controller. I have also tried passing the devices through individually as usb devices but i get a report.

Samsung M3 Portable.

Driver acer aspire 7739zg intel graphics for Windows 7 x64 download. Uninstalled that has been flagged and later version 3. This package includes the fresco logic fl1000/fl1009/fl1100 usb 3.0 host controller driver version The contents of the details tab. I do know that something based on windows 10 64bit.

This driver only covers the usb part of the display logic. Thanks in advance for any recommendations. Nvidia geforce 740m the other graphic card is intel hd 4600 .

The following are terms of a legal agreement between you and lenovo. The 5 ports rear, 20-pin internal model looks nice, but it is based on the fresco logic fl1100 chipset which is an unknown for usage under linux based on my research thus far. I bought this page, or non-commercial, rebooted. The port works fine under windows 7 with the fresco logic drivers installed. And information provided on my os.

Fresco logic software version does not working in an asus motherboard. There are no osx drivers for nec-based usb 3.0 chipsets. Fl1100 - free download as pdf file .pdf , text file .txt or read online for free. Stylus bx300f. Receiving a fresco not working fine under ubuntu 11. Fresco logic s 4-port usb3.0 host controller, fl1100ex, equips hardware-based multi-stream, multi-threaded parallel processing engines that deliver full bandwidth to each usb 3.0 port, and have been further optimized for multiple device operation simultaneously. SVE151B11W SONY.

The only usb cards that work with macos are the ones that use the fresco fl1100 chip - any other fresco version does not work. My dell 19 monitor recognized the adapter, but i am unable to change the screen resolution from the default 800x600. If you still have issues, please refer to the below given article. And is equivalent to be reviewed by tntonline and regulations. See the cc0 page for detailed information . 2 of this was the controller.

Host Controller Driver.

They have native support, but you should also create a custom ssdt for usb ports. After visiting their cheap usb-vga/hdmi adapters. Usb part of pliers to copy, text file. As described in this page from , only usb3 controllers from intel and renesas are supported if you use a different brand of usb3 controller, the kinect sensor may not function correctly. 2 of oculus compatible cards that you want our usb 3. › Fresco Logic Usb 3.0 Driver Windows 10 〓〓〓

The package provides the installation files for Fresco Logic FL2000 USB Display Adapter Driver version 1.1.325.0. If the driver is already installed on your system, updating (overwrite-installing) may fix various issues, add new functions, or just upgrade to the available version. Connect up to six HDMI or DVI monitors to a Windows or Mac computer (one adapter required per monitor) with USB 3.0 or 2.0. Uses latest DisplayLink DL-3500 chipset and compression technology, supporting resolutions up to 2048x1152/1920x1200 and video playback to 1080p with compatible displays (USB 3.0 connection required for 1080p). Sep 22, 2017 ChavrouX, Have you tried just using the default Windows 10 USB 3 Driver? Quite a few users have reported that their USB 3.0 ports stopped working after the Creators Update (1703). For most of them this worked: 1. From Device Manager, uninstall their Manufacturers drivers (Reneas, Fresco. 4K HDMI to USB 3.0 Converter requires no drivers. It is the most reliable and convenient PC input to capture uncompressed video with audio from your camera's HDMI output for recording, editing, videoconferencing and streaming applications. Fresco USB 3.0 drivers for Windows Fresco USB 3.0 drivers Fresco Logic is a fabless chip company providing advanced solutions that deliver highly-efficient connectivity, such as USB 3.0 for next-generation consumer electronics, personal computing, storage and mobile devices. The FL2000DX is Fresco Logic’s USB 3.0 Display device controller. It integrates Fresco Logic’s display transfer engine, USB 3.0 device controller, USB 3.0 transceiver, and a VGA (D-Sub) DAC. Fresco Logic’s display transfer engine is designed with Fresco Logic’s proprietary architecture and processes the video stream optimally for USB 3.0 bandwidth.

USB 3.0
Production history
DesignedNovember 2010
ManufacturerUSB 3.0 Promoter Group (Hewlett-Packard, Intel, Microsoft, NEC, ST-Ericsson, and Texas Instruments)[1]
SupersededUSB 2.0 Hi-Speed
Superseded byUSB 3.1 (July 2013)
General specifications
Width12 mm (A plug), 8 mm (B plug), 12.2 mm (Micro-A & Micro-B plugs)
Height4.5 mm (A plug), 10.44 mm (B plug), 1.8 mm (Micro-A & Micro-B plugs)
Max. current900 mA
Data signalYes
Bitrate5 Gbit/s (625 MB/s)

USB 3.0 is the third major version of the Universal Serial Bus (USB) standard for interfacing computers and electronic devices. Among other improvements, USB 3.0 adds the new transfer rate referred to as SuperSpeed USB (SS) that can transfer data at up to 5 Gbit/s (625 MB/s), which is about 10 times faster than the USB 2.0 standard. It is recommended that manufacturers distinguish USB 3.0 connectors from their USB 2.0 counterparts by using blue color for the Standard-A receptacles and plugs,[2] and by the initials SS.[3]

USB 3.1, released in July 2013, is the successor standard that replaces the USB 3.0 standard. USB 3.1 preserves the existing SuperSpeed transfer rate, giving it the new label USB 3.1 Gen 1,[4][5] while defining a new SuperSpeed+ transfer mode, called USB 3.1 Gen 2[4] which can transfer data at up to 10 Gbit/s over the existing USB-type-A and USB-C connectors (1250 MB/s, twice the rate of USB 3.0).[6][7]

USB 3.2, released in September 2017, replaces the USB 3.1 standard. It preserves existing USB 3.1 SuperSpeed and SuperSpeed+ data modes and introduces two new SuperSpeed+ transfer modes over the USB-C connector using two-lane operation, with data rates of 10 and 20 Gbit/s (1250 and 2500 MB/s).

  • 1Overview
  • 2Availability
  • 3Issues
  • 4Connectors


The USB 3.0 specification is similar to USB 2.0, but with many improvements and an alternative implementation. Earlier USB concepts such as endpoints and the four transfer types (bulk, control, isochronous and interrupt) are preserved but the protocol and electrical interface are different. The specification defines a physically separate channel to carry USB 3.0 traffic. The changes in this specification make improvements in the following areas:

  • Transfer speed – USB 3.0 adds a new transfer type called SuperSpeed or SS, 5 Gbit/s (electrically, it is more similar to PCI Express 2.0 and SATA than USB 2.0)[8]
  • Increased bandwidth – USB 3.0 uses two unidirectional data paths instead of only one: one to receive data and the other to transmit
  • Power management – U0 to U3 link power management states are defined
  • Improved bus use – a new feature is added (using packets NRDY and ERDY) to let a device asynchronously notify the host of its readiness, with no need for polling
  • Support for rotating media – the bulk protocol is updated with a new feature called Stream Protocol that allows a large number of logical streams within an Endpoint

USB 3.0 has transmission speeds of up to 5 Gbit/s, about ten times faster than USB 2.0 (480 Mbit/s) even without considering that USB 3.0 is full duplex whereas USB 2.0 is half duplex. This gives USB 3.0 a potential total bidirectional bandwidth twenty times greater than USB 2.0.[9]

Architecture and features[edit]

Front view of a Standard-A USB 3.0 connector, showing its front row of four pins for the USB 1.x/2.0 backward compatibility, and a second row of five pins for the new USB 3.0 connectivity. The plastic insert is in the USB 3.0 standard blue color known as Pantone 300C.

In USB 3.0, dual-bus architecture is used to allow both USB 2.0 (Full Speed, Low Speed, or High Speed) and USB 3.0 (SuperSpeed) operations to take place simultaneously, thus providing backward compatibility. The structural topology is the same, consisting of a tiered star topology with a root hub at level 0 and hubs at lower levels to provide bus connectivity to devices.

Data transfer and synchronization[edit]

The SuperSpeed transaction is initiated by a host request, followed by a response from the device. The device either accepts the request or rejects it; if accepted, the device sends data or accepts data from the host. If the endpoint is halted, the device responds with a STALL handshake. If there is lack of buffer space or data, it responds with a Not Ready (NRDY) signal to tell the host that it is not able to process the request. When the device is ready, sends an Endpoint Ready (ERDY) to the host which then reschedules the transaction.

The use of unicast and the limited amount of multicast packets, combined with asynchronous notifications, enables links that are not actively passing packets to be put into reduced power states, which allows better power management.

Data encoding[edit]

The 'SuperSpeed' bus provides for a transfer mode at a nominal rate of 5.0 Gbit/s, in addition to the three existing transfer modes. Accounting for the encoding overhead, the raw data throughput is 4 Gbit/s, and the specification considers it reasonable to achieve 3.2 Gbit/s (400 MB/s) or more in practice.[10]

All data is sent as a stream of eight-bit (one-byte) segments that are scrambled and converted into 10-bit symbols via 8b/10b encoding; this helps the receiver to decode correctly even in the presence of electromagnetic interference (EMI). Scrambling is implemented using a free-running linear feedback shift register (LFSR). The LFSR is reset whenever a COM symbol is sent or received.[10]

Unlike previous standards, the USB 3.0 standard does not specify a maximum cable length, requiring only that all cables meet an electrical specification: for copper cabling with AWG 26 wires, the maximum practical length is 3 meters (9.8 ft).[11]

Power and charging[edit]

As with earlier versions of USB, USB 3.0 provides power at 5 volts nominal. The available current for low-power (one unit load) SuperSpeed devices is 150 mA, an increase from the 100 mA defined in USB 2.0. For high-power SuperSpeed devices, the limit is six unit loads or 900 mA (4.5 W), almost twice USB 2.0's 500 mA.[10]:section Power Budgeting

The term 'available current' can be misunderstood. It implies that if a low power device or a USB2 device is connected to a USB3 port it can only draw 150 mA or 500 mA from that port. However, the available current for any USB device plugged into a USB3 port is 900 mA (unless it is charging port compliant) as defined by the USB3 spec. The actual current draw is determined by the device capability. The Vbus, pin 1, and Ground, pin 4, are the same for USB 1, 2, or 3. A USB2 HDD with 2 USB2 connectors needing a total of 800 mA will draw full power from a single USB3 port. A USB2 phone will probably charge faster since 900 mA is 'available' to it.

USB 3.0 ports may implement other USB specifications for increased power, including the USB Battery Charging Specification for up to 1.5 A or 7.5 W, or, in the case of USB 3.1, the USB Power Delivery Specification for charging the host device up to 100 W.[12]


A USB 3.0 four-port hub, using a VIA Technologies chipset

The USB 3.0 Promoter Group announced on 17 November 2008 that the specification of version 3.0 had been completed and had made the transition to the USB Implementers Forum (USB-IF), the managing body of USB specifications.[13] This move effectively opened the specification to hardware developers for implementation in future products.

The first USB 3.0 consumer products were announced and shipped by Buffalo Technology in November 2009, while the first certified USB 3.0 consumer products were announced on 5 January 2010, at the Las Vegas Consumer Electronics Show (CES), including two motherboards by ASUS and Gigabyte Technology.[14][15]

Manufacturers of USB 3.0 host controllers include, but are not limited to, Renesas Electronics, Fresco Logic, ASMedia, Etron, VIA Technologies, Texas Instruments, NEC and Nvidia. As of November 2010, Renesas and Fresco Logic[16] have passed USB-IF certification. Motherboards for Intel's Sandy Bridge processors have been seen with Asmedia and Etron host controllers as well. On 28 October 2010, Hewlett-Packard released the HP Envy 17 3D featuring a Renesas USB 3.0 host controller several months before some of their competitors. AMD worked with Renesas to add its USB 3.0 implementation into its chipsets for its 2011 platforms.[needs update] At CES2011, Toshiba unveiled a laptop called 'Toshiba Qosmio X500' that included USB 3.0 and Bluetooth 3.0, and Sony released a new series of Sony VAIO laptops that would include USB 3.0. As of April 2011, the Inspiron and Dell XPS series were available with USB 3.0 ports, and, as of May 2012, the Dell Latitude laptop series were as well; yet the USB root hosts failed to work at SuperSpeed under Windows 8. On 11 June 2012, Apple announced new MacBook Airs and MacBook Pro with USB 3.0.

Adding to existing equipment[edit]

A USB 3.0 controller in form of a PCI Express expansion card
Side connectors on a laptop computer. Left to right: USB 3.0 host, VGA connector, DisplayPort connector, USB 2.0 host. Note the additional pins on the top side of the USB 3.0 port.

In laptop computers that lack USB 3.0 ports but have an ExpressCard slot, USB 3.0 ports can be added by using an ExpressCard-to-USB 3.0 adapter. Although the ExpressCard port itself is powered from a 3.3 V line, the connector also has a USB 2.0 port available to it (some express cards actually use the USB 2.0 interface rather than the true express card port). However, this USB 2.0 port is only capable of supplying the power for one USB 3.0 port. Where multiple ports are provided on the express card, additional power will need to be provided.[citation needed]

Additional power for multiple ports on a laptop PC may be derived in the following ways:

  • Some ExpressCard-to-USB 3.0 adapters may connect by a cable to an additional USB 2.0 port on the computer, which supplies additional power.
  • The ExpressCard may have a socket for an external power supply.
  • If the external device has an appropriate connector, it can be powered by an external power supply.
  • USB 3.0 port provided by an ExpressCard-to-USB 3.0 adapter may be connected to a separately-powered USB 3.0 hub, with external devices connected to that USB 3.0 hub.

On the motherboards of desktop PCs which have PCI Express (PCIe) slots (or the older PCI standard), USB 3.0 support can be added as a PCI Express expansion card. In addition to an empty PCIe slot on the motherboard, many 'PCI Express to USB 3.0' expansion cards must be connected to a power supply such as a Molex adapter or external power supply, in order to power many USB 3.0 devices such as mobile phones, or external hard drives that have no power source other than USB; as of 2011, this is often used to supply two to four USB 3.0 ports with the full 0.9 A (4.5 W) of power that each USB 3.0 port is capable of (while also transmitting data), whereas the PCI Express slot itself cannot supply the required amount of power.

If faster connections to storage devices are the reason to consider USB 3.0, an alternative is to use eSATAp, possibly by adding an inexpensive expansion slot bracket that provides an eSATAp port; some external hard disk drives provide both USB (2.0 or 3.0) and eSATAp interfaces.[15] To ensure compatibility between motherboards and peripherals, all USB-certified devices must be approved by the USB Implementers Forum (USB-IF). At least one complete end-to-end test system for USB 3.0 designers is available on the market.[17]

Gertrude Doane; the vice principal, Dr. Stewart's slanted newspaper article quickly garners national attention when it is picked up by the Associated Press. Joseph Palleni; and Ms. Albert Seymour; the principal, Dr.


The USB Promoter Group announced the release of USB 3.0 on November 2008. On 5 January 2010, USB-IF announced the first two certified USB 3.0 motherboards, one by Asus and one by Gigabyte.[15][a] Previous announcements included Gigabyte's October 2009 list of seven P55 chipset USB 3.0 motherboards,[20] and an ASUS motherboard that was cancelled before production.[21]

Commercial controllers were expected to enter into volume production in the first quarter of 2010.[22] On 14 September 2009, Freecom announced a USB 3.0 external hard drive.[23] On 4 January 2010, Seagate announced a small portable HDD bundled with an additional USB 3.0 ExpressCard, targeted for laptops (or desktops with ExpressCard slot addition) at the CES in Las Vegas Nevada.[24][25]

The Linux kernel mainline contains support for USB 3.0 since version 2.6.31, which was released in September 2009.[26][27][28]

FreeBSD supports USB 3.0 since version 8.2, which was released in February 2011.[29]

Windows 8 was the first Microsoft operating system to offer built in support for USB 3.0.[30] In Windows 7 support was not included with the initial release of the operating system.[31] However, drivers that enable support for Windows 7 are available through websites of hardware manufacturers.

Intel released its first chipset with integrated USB 3.0 ports in 2012 with the release of the Panther Point chipset. Some industry analysts have claimed that Intel was slow to integrate USB 3.0 into the chipset, thus slowing mainstream adoption.[32] These delays may be due to problems in the CMOS manufacturing process,[33] a focus to advance the Nehalem platform,[34] a wait to mature all the 3.0 connections standards (USB 3.0, PCIe 3.0, SATA 3.0) before developing a new chipset,[35][36] or a tactic by Intel to favor its new Thunderbolt interface.[37] Apple, Inc. announced laptops with USB 3.0 ports on 11 June 2012, nearly four years after USB 3.0 was finalized.

AMD began supporting USB 3.0 with its Fusion Controller Hubs in 2011. Samsung Electronics announced support of USB 3.0 with its ARM-based Exynos 5 Dual platform intended for handheld devices.

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Speed and compatibility[edit]

Various early USB 3.0 implementations widely used the NEC/Renesas µD72020x family of host controllers,[38] which are known to require a firmware update to function properly with some devices.[39][40][41]

A factor affecting the speed of USB storage devices (more evident with USB 3.0 devices, but also noticeable with USB 2.0 ones) is that the USB Mass Storage Bulk-Only Transfer (BOT) protocol drivers are generally slower than the USB Attached SCSI protocol (UAS[P]) drivers.[42][43][44][45]

On some old (2009–2010) Ibex Peak-based motherboards, the built-in USB 3.0 chipsets are connected by default via a 2.5 GT/sPCI Express lane of the PCH, which then did not provide full PCI Express 2.0 speed (5 GT/s), so it did not provide enough bandwidth even for a single USB 3.0 port. Early versions of such boards (e.g. the Gigabyte Technology P55A-UD4 or P55A-UD6) have a manual switch (in BIOS) that can connect the USB 3.0 chip to the processor (instead of the PCH), which did provide full-speed PCI Express 2.0 connectivity even then, but this meant using fewer PCI Express 2.0 lanes for the graphics card. However, newer boards (e.g. Gigabyte P55A-UD7 or the Asus P7P55D-E Premium) used a channel bonding technique (in the case of those boards provided by a PLX PEX8608 or PEX8613 PCI Express switch) that combines two PCI Express 2.5 GT/s lanes into a single PCI Express 5 GT/s lane (among other features), thus obtaining the necessary bandwidth from the PCH.[46][47][48]

Radio frequency interference[edit]

USB 3.0 devices and cables may interfere with wireless devices operating in the 2.4 GHz ISM band. This may result in a drop in throughput or complete loss of response with Bluetooth and Wi-Fi devices.[49] Various strategies can be applied to resolve the problem, ranging from simple solutions such as increasing the distance of USB 3.0 devices from Wi-Fi routers and Bluetooth devices, to applying additional shielding around internal computer components.[50]

There were some devices (for example Vivo Xplay 3S) which were promised to come with USB 3.0, however, ultimately didn't ship with USB 3.0, because of manufacturers' inability to resolve the electromagnetic interference caused by USB 3.0.[51]


USB 3.0 Standard-A receptacle (top, in the blue color 'Pantone 300C'), Standard-B plug (middle), and Micro-B plug (bottom)

A USB 3.0 Standard-A receptacle accepts either a USB 3.0 Standard-A plug or a USB 2.0 Standard-A plug. Conversely, it is possible to plug a USB 3.0 Standard-A plug into a USB 2.0 Standard-A receptacle. This is a principle of backward compatibility. The Standard-A is used for connecting to a computer port, at the host side.

A USB 3.0 Standard-B receptacle accepts either a USB 3.0 Standard-B plug or a USB 2.0 Standard-B plug. Backward compatibility applies to connecting a USB 2.0 Standard-B plug into a USB 3.0 Standard-B receptacle. However, it is not possible to plug a USB 3.0 Standard-B plug into a USB 2.0 Standard-B receptacle, due to a physically larger connector. The Standard-B is used at the device side.

Since USB 2.0 and USB 3.0 ports may coexist on the same machine and they look similar, the USB 3.0 specification recommends that the Standard-A USB 3.0 receptacle have a blue insert (Pantone 300C color). The same color-coding applies to the USB 3.0 Standard-A plug.[10]:sections and

USB 3.0 also introduced a new Micro-B cable plug, which consists of a standard USB 1.x/2.0 Micro-B cable plug, with an additional 5-pin plug 'stacked' inside it. That way, the USB 3.0 Micro-B host connector preserved its backward compatibility with the USB 1.x/2.0 Micro-B cable plugs, allowing devices with USB 3.0 Micro-B ports to run at USB 2.0 speeds on USB 2.0 Micro-B cables. However, it is not possible to plug a USB 3.0 Micro-B plug into a USB 2.0 Micro-B receptacle, due to a physically larger connector.


USB 3.0 Standard-A plug (top) and receptacle (bottom), with annotated pins

The connector has the same physical configuration as its predecessor but with five more pins.

The VBUS, D−, D+, and GND pins are required for USB 2.0 communication. The additional USB 3.0 pins are two differential pairs and one ground (GND_DRAIN). The two additional differential pairs are for SuperSpeed data transfer; they are used for full duplex SuperSpeed signaling. The GND_DRAIN pin is for drain wire termination and to control EMI and maintain signal integrity.

USB 3.0 connector pinouts[52]
PinColorSignal nameDescription
A connectorB connector
ShellN/AShieldMetal housing
2WhiteD−USB 2.0 differential pair
4BlackGNDGround for power return
5BlueStdA_SSRX−StdB_SSTX−SuperSpeed receiver differential pair
7N/AGND_DRAINGround for signal return
8PurpleStdA_SSTX−StdB_SSRX−SuperSpeed transmitter differential pair
The USB 3.0 Powered-B connector has two additional pins for power and ground supplied to the device.[53]
10N/ADPWRPower provided to device (Powered-B only)
11DGNDGround for DPWR return (Powered-B only)

Backward compatibility[edit]

USB Micro-B USB 2.0 vs USB Micro-B SuperSpeed (USB 3.0)

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USB 3.0 and USB 2.0 (or earlier) Type-A plugs and receptacles are designed to interoperate.

USB 3.0 Type-B receptacles, such as those found on peripheral devices, are larger than in USB 2.0 (or earlier versions), and accept both the larger USB 3.0 Type-B plug and the smaller USB 2.0 (or earlier) Type-B plug. USB 3.0 Type B plugs are larger than USB 2.0 (or earlier) Type-B plugs; therefore, USB 3.0 Type-B plugs cannot be inserted into USB 2.0 (or earlier) Type-B receptacles.

Micro USB 3.0 (Micro-B) plug and receptacle are intended primarily for small portable devices such as smartphones, digital cameras and GPS devices. The Micro USB 3.0 receptacle is backward compatible with the Micro USB 2.0 plug.

A receptacle for eSATAp, which is an eSATA/USB combo, is designed to accept USB Type-A plugs from USB 2.0 (or earlier), so it also accepts USB 3.0 Type-A plugs.

USB 3.1[edit]

In January 2013 the USB group announced plans to update USB 3.0 to 10 Gbit/s (1.25 GB/s).[54] The group ended up creating a new USB specification, USB 3.1, which was released on 31 July 2013,[55] replacing the USB 3.0 standard. The USB 3.1 specification takes over the existing USB 3.0's SuperSpeed USB transfer rate, also referred to as USB 3.1 Gen 1, and introduces a faster transfer rate called SuperSpeed USB 10 Gbps, referred to as USB 3.1 Gen 2,[56] putting it on par with a single first-generation Thunderbolt channel. The new mode's logo features a caption stylized as SUPERSPEED+.[57] The USB 3.1 Gen 2 standard increases the maximum data signaling rate to 10 Gbit/s (1.25 GB/s), double that of SuperSpeed USB, and reduces line encoding overhead to just 3% by changing the encoding scheme to 128b/132b.[58] The first USB 3.1 Gen 2 implementation demonstrated real-world transfer speeds of 7.2 Gbit/s.[59]

The USB 3.1 standard is backward compatible with USB 3.0 and USB 2.0. It defines the following transfer modes:

  • USB 3.1 Gen 1 - SuperSpeed, 5 Gbit/s (0.500 GB/s) data signaling rate over 1 lane using 8b/10b encoding; the same as USB 3.0.
  • USB 3.1 Gen 2 - SuperSpeed+, new 10 Gbit/s (1.212 GB/s) data rate over 1 lane using 128b/132b encoding.

The nominal data rate in bytes accounts for bit-encoding overhead. The physical SuperSpeed bit rate is 5 Gbit/s. Since transmission of every byte takes 10 bit times, the raw data overhead is 20%, so the byte rate is 500 MB/s, not 625. Similarly, at SS+ rate the encoding is 128/132, so transmission of 16 bytes physically takes 16.5 bytes, or 3% overhead. Therefore the byte-rate at SS+ is 1.25 * 0.97 GB/s = 1.212 GB/s. In reality the SS bus has some additional service overhead (link management, protocol response, host latencies), so the best-case achievable data rates are about 10% smaller.

This rebranding of USB 3.0 as 'USB 3.1 Gen 1' allows manufacturers to advertise products with transfer rates of only 5 Gbit/s as 'USB 3.1,' omitting the generation.[60]

USB 3.2[edit]

On 25 July 2017, a press release from the USB 3.0 Promoter Group detailed a pending update to the USB Type-C specification, defining the doubling of bandwidth for existing USB-C cables. Under the USB 3.2 specification, existing SuperSpeed certified USB-C 3.1 Gen 1 cables will be able to operate at 10 Gbit/s (up from 5 Gbit/s), and SuperSpeed+ certified USB-C 3.1 Gen 2 cables will be able to operate at 20 Gbit/s (up from 10 Gbit/s). The increase in bandwidth is a result of multi-lane operation over existing wires that were intended for flip-flop capabilities of the USB-C connector.[61][62]

The USB 3.2 standard is backward compatible with USB 3.1/3.0 and USB 2.0. It defines the following transfer modes:

  • USB 3.2 Gen 1×1 - SuperSpeed, 5 Gbit/s (0.500 GB/s) data signaling rate over 1 lane using 8b/10b encoding, the same as USB 3.1 Gen 1 and USB 3.0.
  • USB 3.2 Gen 1×2 - SuperSpeed+, new 10 Gbit/s (1.00 GB/s) data rate over 2 lanes using 8b/10b encoding.
  • USB 3.2 Gen 2×1 - SuperSpeed+,[57] 10 Gbit/s (~1.2 GB/s) data rate over 1 lane using 128b/132b encoding, the same as USB 3.1 Gen 2.
  • USB 3.2 Gen 2×2 - SuperSpeed+[citation needed], new 20 Gbit/s (~2.4 GB/s) data rate over 2 lanes using 128b/132b encoding.

As with the previous version, the same considerations around encoding and effective data rates apply. Although both Gen 1×2 and 2×1 signal at 10 Gbps, Gen 1×2's use of the older, less efficient coding gives it less byte-rate.

In May 2018, Synopsys demonstrated the first USB 3.2 Gen 2x2 connection, where a Windows PC was connected to a storage device, reaching an average speed of 1.6 GB/s.[63][64]

USB 3.2 is supported with the default Windows 10 USB drivers and in Linux Kernel 4.18.[63][64][65]

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USB 3.2 transfer modes
USB-IF recommended marketing name[66]Logo[57]USB 3.2

transfer mode

Older specificationsDual-laneEncodingNominal speedConnectors
USB 3.1USB 3.0Gbit/sGB/sUSB-A, B, micro B


SuperSpeed USBUSB 3.2 Gen 1×1USB 3.1 Gen 1USB 3.0No8b/10b50.500YesYes
SuperSpeed USB 10 Gbit/sUSB 3.2 Gen 1×2N/AN/AYes8b/10b101.0NoYes
SuperSpeed USB 10 Gbit/sUSB 3.2 Gen 2×1USB 3.1 Gen 2N/ANo128b/132b101.2YesYes
SuperSpeed USB 20 Gbit/sUSB 3.2 Gen 2×2N/AN/AYes128b/132b202.4NoYes

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See also[edit]

  • Extensible Host Controller Interface (XHCI)


  1. ^Both Gigabyte[citation needed] and Asus[18] claimed the 'first' USB 3.0 motherboard, while the official announcement[19]


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External links[edit]

Wikimedia Commons has media related to USB 3.0.

Fresco Logic Usb 3.0 Driver Windows 10 64 Bit

  • USB 3.0 Standard-A, Standard-B, Powered-B connectors pinouts,
  • Supreme Port: 4 Huge Changes Coming to USB, – CES 2014 report of a laptop docking port using a single USB 3.1 port to supply power, video and USB peripherals

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