DTECH 2 Input 2 Output VGA Video Switch and Splitter (2 PCs Sharing Dual Monitors) up to 2048x1536 Resolution and Signal up to 278ft Video duplicator allows you to connect 2 VGA video source devices to dual VGA video displays, synchronization output. Switches between Source 1 and Source 2 using front panel pushbuttons. With Status LEDs. Long Distance Transmission - Duplicate and enhance video signals to up to 278 feet (max.) High Resolution Video - Up To 2048 x 1536. 500MHz Bandwidths. Supports Widescreen Display. Plug and play. High quality metal enclosure for excellent heat dissipation and reliability. (please be noted that it's not a video extender)