DTECH 2 Input 3 Output VGA Video Switch and Splitter (2 PCs Sharing 2/3 Monitors) 1920x1440 Resolution and Extends Video Signal up to 278ft VGA Video duplicator allows you to connect 2 VGA video source devices to up to 3 VGA video displays, multi-way synchronization output (Not support Extended Desktop) Switch between Source 1 and Source 2 using front panel push buttons; With Status LEDs to check the connection activity Long Distance Transmission - Duplicate and enhance video signals to up to 278 feet (max.) Powered VGA splitter with 250 Mhz supports High Resolution Video Up To 1920 x 1440; Supports Widescreen Display. Plug and play; High quality metal enclosure for excellent heat dissipation and reliability (please be noted that this is not a video extender)