The SV431DUSBU 4 Port 1U Rack Mountable USB KVM Switch with OSD lets you control multiple USB based computers from a single console (USB keyboard, USB mouse, monitor). Convenient push-button and hot-key controls provide quick, reliable switching between connected computers while manual and auto-scan switching modes and an On Screen Display (OSD) offer additional control options. Designed to ensure maximum space efficiency, the USB KVM switch features a slim 1U design that fits neatly into a server equipment rack/cabinet (with optional mounting bracket SV431RACK) and offers rear cable connections to eliminate cable tangles and minimize workspace disruption. This product is TAA compliant and backed by a Startech.com 3-year warranty with free lifetime technical support. Rackmount your KVM switch If you’d like to mount this KVM switch to your server rack, StarTech.com offers a 1U Rackmount Bracket (sold separately) that turns this KVM into a rackmountable KVM. The SV431DUSBU only works with specific 2-in-1 VGA and USB cables (sold separately), a list of StarTech.com approved cables are below: 6 ft Ultra Thin USB VGA 2-in-1 KVM Cable 6 ft Ultra Thin USB VGA 2-in-1 KVM Cable 10 ft Ultra Thin USB VGA 2-in-1 KVM Cable 15 ft Ultra Thin USB VGA 2-in-1 KVM Cable