The PRIMUX® Zero-U VGA KVM Switch System allows you to control up to 64 computers without consuming rack space. The switch frees up valuable space by eliminating large KVM switchboxes and bulky hard-to-manage coax cables. The PRIMUX system consists of two components: the User Station that connects to a keyboard, monitor and mouse, and Host Adapter that connects to a server. Up to 64 Host Adapters can be daisy-chained together providing user access to up to 64 servers. The User Stations and Host Adapters can be located as far as 1,000 feet from each other via CAT5/5e/6 UTP cable. For more information, visit http://www.networktechinc.com/kvmswitch-cat5.html