Kanex 10 Foot Extension Cable for Apple LED Cinema Display 24-Inch 27-Inch (C247EXT10FT) Extends the 24" & 27" Apple LED Cinema Display Extends both audio & video USB audio with mini DisplayPort video in a single-cable solution 10Ft Extend the cable length for easy accessibility Input: Mini DisplayPort/USB Output: Mini DisplayPort/USB Supports up to 2560 x 1440 for the 27" Apple Cinema Display Supports up to 1920-by-1200 for the 24-inch Apple Cinema Display