Connect your Mini DisplayPort or Thunderbolt equipped PC or Mac to a 4K HDMI video display using this Mini DisplayPort 1.2a /Thunderbolt to 4K HDMI Passive Adapter from Monoprice! This adapter is designed to allow you to connect an HDMI display to a Mini DisplayPort or Thunderbolt video output. It conforms to the DisplayPort 1.2a standard and supports HDMI resolutions up to 4K 3840x2160p @30Hz. Being a passive adapter; it is NOT compatible with the AMD Eyefinity and nVidia Surround multidisplay modes. It features a true 6" cable length with polycarbonate connector heads. The MDP connector head measures 14.0mm thick; 16.0mm wide; and 24.0mm long. The HDMI connector head measures 17.5mm thick; 27.5mm wide; and 47.0mm long. Features: Conforms to DisplayPort 1.2a standard Connects to both Mini DisplayPort and Thunderbolt video outputs Supports HDMI resolutions up to 4K 3840x2160p @30Hz PASSIVE adapter is NOT compatible with nVidia Surround or AMD Eyefinity multidisplay modes Thunderbolt is a trademark of Intel Corporation in the U.S. and/or other countries. Apple and Mac are trademarks of Apple Inc.; registered in the U.S. and other countries. HDMI; the HDMI Logo; and HighDefinition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries. AMD is a registered trademark of Advanced Micro Devices. NVIDIA is a trademark of NVIDIA Corporation.