The KH2516A 2-Console 16-Port Cat 5 High-Density KVM Switch from ATEN is a control unit that allows IT administrators to access and control multiple computers from two PS/2 or USB KVM consoles (one 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.This switch enables administrators to manage their entire server room and data center devices easily and conveniently. For example, the advanced Adapter ID feature stores the adapter cable's configuration information such as its ID, port name, OS, keyboard language, etc. This feature allows administrators to relocate servers to different ports without having to reconfigure the adapters. It also features the enhanced video quality extending the distance to the servers to up to 50 m at a resolution of 1280 x 1024.