Control up to 16 USB (Universal Serial Bus) or PS/2-connected computers from one keyboard, mouse & monitor Cascade configuration adds scalability & offers support for control of up to 136 computers Rugged, solid steel rack-mountable case offers durability even in harsh environments Absolutely no software or drivers required providing a completely OS independent KVM solution The SV1631DUSBGB 16 Port 1U Rack Mount USB (Universal Serial Bus) PS/2 KVM Switch with OSD offers a dependable computer management tool that means that you can control up to 16 USB (Universal Serial Bus) or PS/2 connected computers from a single keyboard, mouse & monitor. The KVM switch offers maximum control, allowing you to switch computers using hotkey commands or front panel push-buttons, & offers the added convenience of an On Screen Display to quickly access configuration options. A suitable addition to server room operations, the 16 port switch can be rack-mounted into 1U of cabinet space, & can be cascaded with multiple KVM switches to deliver control of up to 136 computers from this single switch. This high quality USB (Universal Serial Bus) PS/2 KVM Switch is backed by a Star Tech.com 3-year warranty & free lifetime technical support. Whats in the box 16 Port KVM Switch Mounting Brackets PS/2 keyboard & mouse Y cable Power Adapter User Manual