Sabrent USB 3.0 to HDMI Adapter for Multiple Monitors up to 1920x1080 Each Windows and Mac compatible (DA-HDU3) Connect up to six HDMI monitors to laptops or desktops (one adapter required per monitor) Highest performance USB graphics solution available. Combines both video and audio over a USB and 3.5mm cable. Connects to Windows or Mac PCs via USB 2.0 (480 Mbps) or SuperSpeed USB 3.0 (5 Gbps). USB bus powered (no adapter required) Reverse Compatible with USB 2.0/1.1 Slim Design: No External Power Source Required.