HDMI KVM Over IP Extenders, transmits 120 meters from your HDMI or DVI-D source to HD display by single CAT6/7 cable.Supports 1pcs of SENDER to 4pcs of RECEIVER (over Swtich). Extremely Easy Installation and Operation. You can control STB or Blue-Ray DVD at receiving site by remote control.there are 2 USB port,its a great convenience for long distance controlled by keyboard and mouse. Supports HDCP1.1/1.2 + Full HD 1080p+NEC+2x 5V/2A Power Supply (UK standard) The design of pure hardware, plug and play, no need for additional software. Just connect it correctly, it will show the same high definition signal. This HDMI KVM Over IP Extender is based on TCP/IP standard. It transmits max 120 meters from your HDMI or DVI-D source to HD display by single CAT5e/6 cable. At the same time, it’s also convenient to transmit HDMI audio and video source by point-to-point mode, one point-to-many mode and cascade connection mode.