Mini Display Port 1.1a & HDMI 1.3b ouput Supports HDMI resolution of 1080p Supports HDMI 225 Mhz 2.25 Gbps per channel 6.75 Gbps total Supports HDMI 12-bit per channel 36-bit total deep colour Supports uncompressed audio such as LPCMSupports compressed audio such as DTS Digital Dolby Digital including DTS-HD & Dolby True HDPowered by the Display Port This Mini Display Port to HDMI adaptor means that you can connect your Macbook Macbook Pro or Macbook Air with a mini Display Port to any digital monitor projector & LCD Panel with a HDMI connection. This means you can easily link up your macbook with a larger screen for single or dual screen operation or link it to a projector for presentations. The Mini Display Port adaptor is bi-directional so you can also use the cable to attach your PC or laptop with a HDMI output to an Apple Cinema Display with Mini Display Port Like the 20 & 23 inch Apple Cinema Display.