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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 communications - Wikipedia

    en.wikipedia.org/wiki/USB_communications

    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] USB 3.0 connectors are generally backward compatible, but include new wiring and full-duplex operation.

  4. USB hardware - Wikipedia

    en.wikipedia.org/wiki/USB_hardware

    USB ports and connectors are often color-coded to distinguish their different functions and USB versions. These colors are not part of the USB specification and can vary between manufacturers; for example, the USB 3.0 specification mandates appropriate color-coding while it only recommends blue inserts for Standard-A USB 3.0 connectors and plugs.

  5. USB4 - Wikipedia

    en.wikipedia.org/wiki/USB4

    Downstream facing ports includes host ports as well as any "outputs" of a USB4 hub. While upstream facing ports include anything that is connectible to a downstream facing port, like the ports of peripherals or the "input" port of a USB4 hub. [21] Any USB4 DFP port is required to also implement USB 2.0, USB 3.2 and DP Alternative Mode support ...

  6. USB hub - Wikipedia

    en.wikipedia.org/wiki/USB_hub

    A four-port "long cable" "external box" USB hub A four-port "compact design" USB hub: upstream and downstream ports shown. A USB hub is a device that expands a single Universal Serial Bus (USB) port into several so that there are more ports available to connect devices to a host system, similar to a power strip. All devices connected through a ...

  7. USB flash drive - Wikipedia

    en.wikipedia.org/wiki/USB_flash_drive

    Because the USB port connectors on a computer housing are often closely spaced, plugging a flash drive into a USB port may block an adjacent port. Such devices may carry the USB logo only if sold with a separate extension cable. Such cables are USB-compatible but do not conform to the USB standard. [35] [36]

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    mail.aol.com/d?reason=invalid_cred

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. USB 3.0 - Wikipedia

    en.wikipedia.org/wiki/USB_3.0

    Note the five additional pins on the underside of the tongue of the USB 3.0 port. Additional power for multiple ports on a laptop PC may be obtained 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.