Terminators are made with the highest quality metals and resistors. The 120 ohm resistance stops all the poor signal, flickering and shadow signals caused by bad cables and open ended lines. Required in any professional Lighting Application where Controls are used. terminators are plugged into the last light in a series. terminator XLR is a XLR connector plug with a 120 Ohm resistor inside connected to the data lines. Plug this in at the last unit and the source perceives the cable as endless. Otherwise reflections can be caused in of the cable creating problems that can be very difficult to find. Avoid this by terminating of the cable. A 120 Ohm DMX512 Terminator in a XLR connector. Use to avoid data signals being reflected from of the data cable. Professional look. Molded housing. 3-Pin Male XLR. Gold plated pins on connector. Colour: As Shown Material: Stainless steel Package Contents: 4 x DMX512 terminal resistor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.