Startech USB32HD4 USB 3.0 to 4 HDMI Adapter - USB to 4 HDMI adapter connects four HDMI monitors to a computer/laptop using a single USB Type-A port, 4x 1080p 60Hz, 2ch HDMI audio - Quad monitor adapter to extend desktop by adding up to 4 displays - USB 3.0 to HDMI adapter converter, 3.3ft attached cable, Bus-power, Ideal for multiple-monitor workspace/HDTV - USB-A display adapter dongle works w/ Windows - Incl Multi-Monitor Assistant app for matrix video wall + window arrangement - External video/graphics card w/ auto-driver install.