Passive 4-Channel Video Balun with extra interference rejection 4 BNC Female to 1 RJ45 Female Jack & 8 push in screw type Terminals * Passive; No power required / Built-in Filter: 0~6MHz / Eliminate coaxial cable * Transmission distance up to 1000ft / 300m working with passive transceivers * Transmission distance up to 2000ft / 600m working with active receivers or transmitters * Built-in TVS (Transient Voltage Suppressors) for surge protection / Use RJ45 Jack or 4 screw type terminal to connect between units