This Gefen 2:1 KVM DVI Audio USB A B Switch is the perfect solution for those who need to control multiple computers from a single workstation. With its included ex-tend-it remote switch, you can extend your control up to 500 ft away using your own 1/8" TRS cable (not included). The device supports various interfaces such as DVI-I, DVI-D, DVI-A, 1/8" TRS Audio, and USB Type A & B, making it a versatile option for different types of businesses.The Gefen 2:1 KVM DVI Audio USB A B Switch is part of the exTENDit product line and is compatible with Network Hubs, Switches & Hubs, Enterprise Networking, Servers, and Computers/Tablets & Networking. This model, EXT-DVIKVM-241, is perfect for those who need to control multiple computers without the hassle of switching between different keyboards, mice, and displays. INCLUDES AC/DC POWER SUPPLY AND REMOTE SWITCH FOR UP TO 500 FEET SWITCHING