Summary: As others have said, you cannot use any other cable. I attempted to use some cables we use for our servers that are of high quality. The video was fine, but would not take input from the Keyboard and mouse. Beware, you must buy their cables. This is a good device otherwise. Works very well.
Summary: I would agree with the cable shortcomings mentioned by the other reviewers (proprietary, expensive, and not included), and add that Tripp-Lite already offers another better model that does not have this drawback: Tripp Lite B006-004-R 4-Port USB KVM Switch. Uses standard USB KVM cables.
Summary: This is a PS/2 KVM, even though USB cables are available, they are not for this unit. Do your reasearch, don't embarrass yourself claiming a 'high' tech knowledge and getting upset because it doesn't support USB. Most KVMs are still PS2 for compatibility.
Pros: Nice unit, solid construction, haven't ran into any compatibility issues. Using it to switch between control computers for machinery.
Cons: Proprietary cables are a bit pricey, but space-saving.
Summary: Discontinue this item or be sure to make note of these serious shortcomings.
Pros: Solid construction, nice steel bezel, good for cable management, smaller form factor due to custom cable design
Cons: Hey Tripp Lite it's 2009 and this unit DOES NOT SUPPORT USB KEYBOARD OR MOUSE? That makes this unit a joke and a wonder that it ever got past design let alone into production. ESPECIALLY since there are two different cable sets you can get, one that is PS2 for KB and MS and one that is - drum rol...
Pros: Very nice brushed steel design. Switches have positive action and audible click. Solid heft to it. Works like it's supposed to. Requires special cables but that's a pro because it assists cable management and allows the KVM switch itself to be smaller: the PS/2 leads are incorporated into the KVM...