This is a genuine BT Openreach MK4 combined master socket and filtered faceplate, designed for high-performance VDSL and ADSL broadband connections. The unit features the latest NTE5c MK2 backplate and a tool-less "cam-lock" design, making installation simple without the need for a specialized IDC punch-down tool. By separating the phone and broadband signals at the source, it eliminates the need for plug-in microfilters throughout your home, often resulting in improved line stability and faster internet speeds. This unit is in excellent condition and includes the internal testing socket for easy network troubleshooting
