The KH1508A KVM switches are control units that allow IT administrators to access and control multiple computers from a single PS/2 or USB KVM console (keyboard, monitor, and mouse). Operators can take control of up to 8 computers. By daisy chaining up to 31 additional switches, as many as 256 computers can be controlled from the original KVM console. 1x KH1508A 8-port Cat 5 High-Density KVM Switch 1x LIN5-04A2-J11G Firmware Upgrade Cable 1x 0AD8-0C05-24EG Power Cord 1x Rack Mount Kit 1x Foot Pad Set (4 pcs.) 1x User Instructions