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2. Extensible Host Controller Interface - Wikipedia

   en.wikipedia.org/wiki/Extensible_Host_Controller...

   The xHCI reduces the need for periodic device polling by allowing a USB 3.0 or later device to notify the host controller when it has data available to read, and moves the management of polling USB 2.0 and 1.1 devices that use interrupt transactions from the CPU-driven USB driver to the USB host controller.

3. USB communications - Wikipedia

   en.wikipedia.org/wiki/USB_communications

   Connectors are identical for USB 2.0 and USB 1.x. SuperSpeed (SS) rate of 5.0 Gbit/s. The written USB 3.0 specification was released by Intel and its partners in August 2008. The first USB 3.0 controller chips were sampled by NEC in May 2009, [4] and the first products using the USB 3.0 specification arrived in January 2010. [5]

4. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   USB 3.2, released in September 2017, [35] preserves existing USB 3.1 SuperSpeed and SuperSpeedPlus architectures and protocols and their respective operation modes, but introduces two additional SuperSpeedPlus operation modes (USB 3.2 Gen 1×2 and USB 3.2 Gen 2×2) with the new USB-C Fabric with signaling rates of 10 and 20 Gbit/s (raw data ...

5. List of interface bit rates - Wikipedia

   en.wikipedia.org/wiki/List_of_interface_bit_rates

   USB 3.0 SuperSpeed (aka USB 3.1 Gen 1, USB 3.2 Gen 1x1) 5 Gbit/s: 500 MB/s: 2010 eSATA (SATA 600) 6 Gbit/s: 600 MB/s: 2011 CoaXPress full (up and down bidirectional link) 6.25 Gbit/s + 20.833 Mbit/s: 781 MB/s: 2009 External PCI Express 2.0 ×2: 8 Gbit/s: 1 GB/s: USB 3.1 SuperSpeed+ (aka USB 3.1 Gen 2, USB 3.2 Gen 1x2, USB 3.2 Gen 2x1, USB4 Gen ...

6. USB 3.0 - Wikipedia

   en.wikipedia.org/wiki/USB_3.0

   The USB 3.1 specification takes over the existing USB 3.0's SuperSpeed USB transfer rate, now referred to as USB 3.1 Gen 1, and introduces a faster transfer rate called SuperSpeed USB 10 Gbps, corresponding to operation mode USB 3.1 Gen 2, [62] putting it on par with a single first-generation Thunderbolt channel.

7. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   The USB 3.0 Micro-B plug effectively consists of a standard USB 2.0 Micro-B cable plug, with an additional 5 pins plug "stacked" to the side of it. In this way, cables with smaller 5 pin USB 2.0 Micro-B plugs can be plugged into devices with 10 contact USB 3.0 Micro-B receptacles and achieve backward compatibility.