4 Port 4k x 2k UHD HDMI Splitter allows users to split 1 HDMI signal source to 4 displays at a maximum resolution of 4k x 2k. Not only does this device split the signal it has the ability to boost the signal with a maximum input of 30 metres and a maximum output of 25 metres. Please Note: When using 4k x 2k resolution we recommend the connected HDMI cables be shorter than 5 metres unless using active cables. This device also supports 3D Specification 4 Port HDMI Splitter 4k x 2k & 3D Support (Also supports lower resolutions such as 1080p) Maximum input: 30 Metres Maximum Output: 25 Metres CEC Support 36-bit Deep Colour HDCP Compliant Metal Casing PSU Included