DTECH 4 Port DVI KVM Switch with Audio USB PS2 Port for Keyboard and Mouse Comes with Cables Control multi computers via a single DVI monitor and USB or PS/2 keyboard/mouse. Supports both PS/2 and USB connections. And 3.5 mm Mini Stereo jacks provide Speaker support. Hot-Keys and Touch Select Button to easily switch between multi computers. Autoscan - Automatically switch between computers at 5 second intervals, easy to monitor. Supports different interval latency auto-scan modes. Comes with cables and power adapter (not included audio cables), without the need to purchase separate cables or adapters. Control up to 4 directly connected computers.