SB-3714 is a 1 input to 4 outputs AV Distribution Amplifier. The Video Bandwidth 80MHz Distribution Amplifier product. It’s one of the most innovative Composite Video and Stereo Audio(AR/AL) via RCA connector Distribution Amplifier product on the market today. It has 1 individual input with 4 individual outputs. Because it is a 1 to 4 signal Distribution Amplifier, one (1) input may be routed to four (4) outputs. It completely eliminates the need to constantly move around Composite Video and Stereo Audio input and output cables. This Distribution Amplifier is ideally suited for TV for the resolution of 480p, 720p.