I've worked with several 2-port omnicubes in my office and at home and I have to say they work without problems and seem to be more reliable than Belkin's newer SOHO USB KVM switches. If your computers have PS/2 ports, this is the perfect KVM switch for you. I've used them with a standard Dell PS/2 keyboard as well as Microsoft Intellimouse and Wheel Mouse Optical and had no problems with them.
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