Aten 4-Port DVI Multi-View KVMP Switch, Quad View with Picture in Picture, support up to 1920 x 1200 @ 60 Hz, 4 DVI USB KVM Cables Included CM1164A-AT-U

Aten 4-Port DVI Multi-View KVMP Switch, Quad View with Picture in Picture, Picture by Picture and Picture on Picture modes, boundless switching – switch with the mouse going across the edge of a screen, support up to 1920 x 1200 @ 60 Hz, 4 DVI USB KVM Cables Included

Multi-view console controls up to four video sources on one screen with display modes including Quad View, Picture in Picture (PiP), Picture by Picture (PbP), and Picture on Picture (PoP)
Easily resize and / or reposition any PiP or PbP to suit users’ viewing needs; Supports superior video quality – up to 1920 x 1200; YCbCr 4:2:2
DCC (Daisy Chain Control) — Controls up to 3 additional CM1164A units from a single console; Cascade up to 2 levels — Controls up to 16 computers (with up to 4 x 4 Multi-view mode)
Boundless Switching – Simply moves the mouse cursor across windows to switch to other video sources