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2. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   The throughput of each USB port is determined by the slower speed of either the USB port or the USB device connected to the port. High-speed USB 2.0 hubs contain devices called transaction translators that convert between high-speed USB 2.0 buses and full and low speed buses. There may be one translator per hub or per port.

3. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   Since these currents are larger than in the original standard, the extra voltage drop in the cable reduces noise margins, causing problems with High Speed signaling. Battery Charging Specification 1.1 specifies that charging devices must dynamically limit bus power current draw during High Speed signaling; [52] 1.2 specifies that charging ...

4. USB 3.0 - Wikipedia

   en.wikipedia.org/wiki/USB_3.0

   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 ...

5. What is USB-C, the charging socket that replaced Apple's ...

   www.aol.com/news/usb-c-charging-socket-replaced...

   USB-C cables can carry more power so laptops can be charged faster, and they enable faster data transfer speeds, allowing a big trove of files to be copied from a computer to an external hard drive.

6. USB-C - Wikipedia

   en.wikipedia.org/wiki/USB-C

   The plug has only one USB 2.0 high-speed differential ... would have to be equipped with a USB-C port and charge with a standard USB-C to USB-C cable by the end of ...

7. USB4 - Wikipedia

   en.wikipedia.org/wiki/USB4

   HBR3 was the highest available DP speed at this time. Active cables may have additional complications, because the active electronics do not need to operate all high speed wire-pairs in the same direction for normal USB operations (but "80 Gbps" cables are mandated to support asymmetric connections, which includes at least some of the wire ...