The StarTech SP123DP Triple Head DisplayPort Multi-Monitor Adapter enables your graphics card to display your desktop on up to three monitors simultaneously. It supports high-definition outputs at resolutions of up to 3840 x 1024 per screen. This StarTech adapter is an external multi-monitor spanner/splitter that lets you plug multiple monitors into the same source without replacing your graphics card. It's designed for fast, easy setup with no software or driver installation required. The StarTech SP123DP Triple Head DisplayPort Multi-Monitor Adapter is ideal for individuals whose work requires using multiple video displays. It is designed for use with DisplayPort video cards and supports three single-mode DisplayPort signals.