HDMI extender Support HDMI 1.3 protocol . Signal tranmission :Double cat-5e or cat-6(recommended) cables up to 60 metres Thank you for purchasing the HDMI extender. For optimum performance and safety, please read these instructions carefully before connecting, operating or adjusting this product. Please keep this manual for future reference. Our series of VGA / HDMI splitters,switchers, extenders ...