Extend your high Speed HDMI cable with an HDMI extension cable from Moonrise. An extension cable can be a cheaper alternative to purchasing a completely new cable to get the extra length you need. This cable is rated as high speed HDMI cable capable of conducting all the HDMI features (except HDMI Ethernet Channel). however the high speed rating is contingent on the total length and AWG rating of the cable as a whole including the extension and the original cable.