SIIG Mini-DP Video Dock with USB 3.0 LAN Hub (Black) - Mini DisplayPort to HDMI or DisplayPort, 2-port USB hub with 1 Gigabit Ethernet port for Macbooks, Surface Pros, and Dell/Asus/Lenovo/HP Laptops (JU-H30412-S1) CUTTING EDGE SOLUTION - Allows you to add 2 USB 3.0 ports and 1 Gigabit Ethernet port, as well as converting your system's Mini DisplayPort Output to either HDMI or DisplayPort output ; Drivers need to installed for the USB part to function properly. OUTSTANDING PERFORMANCE - Supports USB 3.0 data transfer rates up to 5Gbps, Gigabit Ethernet up to 1000 Mb/s transfer rates, DisplayPort output up to 4Kx2K@30Hz, and HDMI output up to 1920x1080@60Hz, enabling reliable and high quality connection. MULTI DISPLAY MODES - Supports triple display modes (Mirror, Extended, Primary) through either HDMI OR DisplayPort output. *NOTE: Only ONE video output can be used, either HDMI or DisplayPort. Does not support both outputs simultaneously. BROAD COMPATIBILITY - Supports only DP 1.1, does not work with DP 1.2 monitors such as Surface Pro 4 ; Compatible with devices with an available Mini DisplayPort and USB 3.0 port (Need both USB and min displayport to be able to use this product). WARRANTY - We provide 3 years warranty with high quality customer service. Please contact us with any questions or concerns.