Aten Rackmount KVM Switch 2 Console 16 Port Multi-Interface Cat 5, KVM Cables NOT Included, Daisy Chainable for up to 256 Devices,Two KVM consoles independently and simultaneously control up to 16 directly connected computers By daisy chaining up to 15 additional KH2516A switches, as many as 256 computers can be controlled from the original KVM console Console conversion any type of KVM console can control any type of computer; mixed combinations (PS 2&USB) supported on both the KVM console and computer sides Superior Video Quality Supports the video resolutions up to