The HDMI-MINIDPUSB means that you can connect a computer with mini display port & a spare USB (Universal Serial Bus) port to a HDMI device such as HD TV. The mini Display Port transmits the video signal while the USB (Universal Serial Bus) transmits the audio creating a complete HDMI source.
Specification Active adaptor Supports mini display port 1.1a input, USB (Universal Serial Bus) 2.0 input & HDMI 1.3b output Works by integrating mini display port video source & USB (Universal Serial Bus) audio source Powered by mini display & USB (Universal Serial Bus) Port Supports HDMI 225 M Hz/2.25 Gbs per channel (6.75 Gbps all channel) bandwidth. Supports HDMI resolution up to 1080p Supports HDMI 12 bit per channel (36 bit all channel) deep colour Supports uncompressed 2 channel audio such as LPCM