This is a Proxtend brand adapter/converter cable that allows you to connect a source device (such as a laptop, a MacBook or a Microsoft Surface) with Mini DisplayPort (mDP) or Thunderbolt 1/2 output to a display (monitor, projector or TV) with HDMI input.It is a adapter cable that supports the Mini DisplayPort 1.2 standard and offers the ability to transmit high resolution video signals. Specifications Main Techniques Product type: Cable adapter/converter video Brand: Proxtend Product Code: MDP-HDMI-001W Connector Source (Input): Mini DisplayPort (Maschio) Display Connector (Output): HDMI (Maschio - it is a cable and not a dongle adapter, so the HDMI port is a male connector) Length: 1 meter Color: White Standard Supported: Mini DisplayPort 1.2 Maximum Resolution: 4K (UHD): Up to 4K @ 60 Hz (3840 x 2160 @ 60 Hz) Full HD: Up to 1080p @ 120 Hz (ideal for some gaming monitors) Features Added: Compatible with Thunderbolt 1 and Thunderbolt 2 ports (using the Mini DisplayPort format). Digital audio transmission (if supported by the mDP source).