This hybrid KVM switch lets you control 16 USB or PS/2 computers using only one PS/2 keyboard, mouse, and monitor. A versatile KVM solution, the switch is compatible with PC, Mac and Sun Servers and Systems and offers hot-pluggable operation, allowing you to add or remove computers without having to shut down the KVM switch. Providing scalable KVM control, the USB+PS/2 switch delivers control of up to 136 computers/servers by cascading 16 additional KVM switches. Plus, the switch can be rackmounted into 1U of cabinet space and features rear panel cable connections, eliminating mess and tangle while saving valuable workspace. Designed to provide dependable control of connected computers and servers, the 16 port USB+PS/2 switch is backed by StarTech.com's 3-year warranty and free lifetime technical support.