The HDMI Extender by CAT-5e/6 uses two pieces of CAT-5e/6 cables to extend the HDTV display up to 30 metres.  It not only breaks the limitation of the HDMI cable transmission length, but also CAT-5e/6 has more flexibility and convenience in cable construction. Resolutions will vary with length... HD-EX300A Performance Cat5/6 Cable Length Resolution CAT6 30 mtr 1080P CAT6 40 mtr 1080i/720P CAT6 45 mtr 480P CAT5E 25 mtr 1080P CAT5E 35 mtr 1080i/720P CAT5E 45 mtr 480P CAT-5e/6 cable can substitute HDMI cable to achieve long distance transmission Follow the standard of IEEE-568B Transmission distance can be up to 30 metres for 1080p while using CAT-6 cable Auto-adjustment of feedback, equalization Signalling rates up to 2.25Gbits in support of 1080P display HDCP compliant Devices with DVI output are not supported due to the lack of signal control Contents : Local & remote unit 1 x 5V DC Power supply User manual