2 or 4 Port USB/PS2 KVM VGA Switch with 2 or 4 Set Cable For Mouse Monitor PC | eBay
KVM Switch PS2 USB Servers Consoles 4-Port | Black Box
Amazon.com: Tripp Lite Minicom PS2 to USB Converter for KVM Switch and Extender, Pure Hardware Solution, TAA GSA Compliant, 3-Year Warranty (0DT60002) : Electronics