USB switch | Article about USB switch by The Free Dictionary
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USB switchA device that allows one or more USB peripherals to connect to multiple computers, one computer at a time. Such a device is often used to share a scanner, printer or external hard drive with two or more computers. The computer is selected manually by pressing buttons on the device or via software.
In order to allow more peripherals to be connected than there are ports on the switch, a USB hub can be connected to one of the switch ports. See USB hub.
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Silicon solutions provider ON Semiconductor (Nasdaq:ONNN) announced on Monday the NCN1188, a 3:1 high speed USB switch
with the capacity to support the new Mobile High Definition Link (MHL) interface standard for High Definition (HD) video and digital audio.
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These features enable the user to implement latchoff or auto-retry functionality which can eliminate the need for a USB switch