About this item: Gold-plated connectors for better signal transfer,Support 480i, 480p, 720p, 1080i, 1080p. Does not support hdcp and MacBook. Does not work on TV box/cable box (e.g. Roku, apple TV box, etc.), if it doesn't work for your device, please tell us, we will solve the problem for you soon. Important Note: Doesn't work for two different monitors one time，only 1 output device should be active at any time unless both of the 2 display devices (HDTV) share the same size and model. Both display devices will show the images after connected. Please contact us if any problem. With this HDMI signal splitter,you can connecting one HDMI compatible device (Xbox, Blue ray, DVD players, PS3) to two visual output devises (such as, HDTV, Monitor, etc.), but could only connect one output device one time, or will not work. CAN BE AS A SIGNAL ROUTER - you may have a TV in two separate rooms,you can have a TV on in one room and when you want to switch room and keep watching the TV,you just need to switch one TV off and switch the other TV on,and then the signal is routed to the TV in the other room. Contact us! Please feel free to contact us via eBay message, if you have any inquiry regarding the item or our service, We will try to reply any message within 24 working hours. Please remember the best way to contact us is via "eBay message" from your bidding item that will help us response you promptly. Emails may not be monitored quickly. Your satisfaction is very important to us, please contact us first before leaving Neutral or Negative feedback as we can always sort out issues to your full satisfaction,thank you! Thank you for shopping with us. Please let us know what we can do for you!