The KH2516A KVM switch is a control unit that allows IT administrators to access and control multiple computers from two PS/2 or USB KVM consoles (two bus). Operators working at up to two consoles can independently and simultaneously take control of up to 16 computers. By daisy chaining up to 15 additional switches, as many as 256 computers can be controlled from the original KVM consoles.1x KH2516A Cat 5 High-Density KVM Switch1x Firmware Upgrade Cable1x LIN2-481K-E12G Power Cord1x Rack Mount Kit1x Foot Pad Set (4 pcs.)1x User Instructions