Tek Republic TUA-400 USB 3.0 to 4K UHD HDMI Adapter Type: USB to HDMI Adapters Color: Black Specifications: Max Resolutions 4k x 2k @ 30Hz Displaylink - DL5500 Operation System: Windows 8/7/XP, Mac OS X 10.8.4 Output Connector: 1 x HDMI (female) Dimensions: 3.60 x 2.00 x 0.75 Weight: 0.14 lb. Package Contents: TUA-400 Driver CD User Manual