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  2. USB - Wikipedia

    en.wikipedia.org/wiki/USB

    Charging docks supply power, and do not include a host device or data pins, allowing any capable USB device to charge or operate from a standard USB cable. Charging cables provide power connections but not data. In a charge-only cable, the data wires are shorted at the device end; otherwise, the device may reject the charger as unsuitable.

  3. USB hardware - Wikipedia

    en.wikipedia.org/wiki/USB_hardware

    Charging docks supply power and do not include a host device or data pins, allowing any capable USB device to charge or operate from a standard USB cable. Charging cables provide power connections, but not data. In a charge-only cable, the data wires are shorted at the device end, otherwise, the device may reject the charger as unsuitable.

  4. USB communications - Wikipedia

    en.wikipedia.org/wiki/USB_communications

    USB signals are transmitted using differential signaling on a twisted-pair data cable with 90 Ω ± 15% characteristic impedance. [6] Low speed (LS) and Full speed (FS) modes use a single data pair, labelled D+ and D−, in half-duplex. Transmitted signal levels are 0.0–0.3 V for logical low, and 2.8–3.6 V for logical high level.

  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

    Whereas earlier USB cables had a host end A and a peripheral device end B, a USB-C cable connects either way; and for interoperation with older equipment, there are cables with a Type-C plug at one end and either a Type-A (host) or a Type-B (peripheral device) plug at the other. The designation "C" refers only to the connector's physical ...

  7. USB 3.0 - Wikipedia

    en.wikipedia.org/wiki/USB_3.0

    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, released 22 September 2017, [11] existing SuperSpeed certified USB-C 3.1 Gen 1 cables will be able to operate at 10 Gbit/s (up ...

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