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Aten USB VGA KVM Console Extender with Deskew, Audio & RS232 - 1920x1200 - Great buy
AS251S - ATEN 2-Port Compact Serial Auto Switch
ATEN AF-142 Parahub IEEE-1284 Auto Switch | eBay
Bitronics Auto Switch - AS8144B, ATEN Auto Switches | ATEN U.S.A.