YueYueZou&reg; 8-Way BNC Coaxial TV CCTV DVR Composite Video 1 to 8 Ports Switch Splitter Box Display one BNC input to 8 BNC output devices at the same time Compatible with CCTV surveillance cameras, media players, DVRs, satellite receivers, CATV set top boxes Works with standard coaxial connector Powered by AC 110/220V (adapter compatible with your country) Hing isolation,no distortion for output signal and no interference, One road video signal input,8 roads video signal output simultaneously,BNC interface