The Aten KA9520 is a PS/2 CPU adapter that connects CAT5 cables to the PS/2 console ports of the servers. Those adapters are light and in small form factor, fit perfectly into most of the rack-mount or desktop servers.
KA9520 Features:
Small form factor to fit perfectly into most of the rack-mount or desktop servers
Connect the CAT5 cable to the PS/2 console port of the servers
Allow you to control servers up to 100 feet away from the KVM when at 1600 x1200 resolution or 130 feet when at 1280 x1024 resolution.
No need to power supply
Easy to install, no need for software
http://www.aten.com/us/en/products/kvm/kvm-modules-&-accessories/ka9520/?gclid=CjwKEAiA6OnFBRDcgt7YmPKI33ESJACJoTJYhjJakLpai8BgarYyl9hFHG90Orm87JQfE0s7OWIoghoCq6rw_wcB#.WLs8QzvyuHs