The SB-3701RCA is a 1 in to 4 out Composite RCA Video Distribution Amplifier. Used to distribute video signals to multiple destinations, this product allows up to 4 outputs that are identical to the source signal. Works with any video source with a Composite RCA connector. Video signals can be distributed from up to 300ft (100m). For proper amplification, make sure that your video source is closely located to the amplifier and connected with a short cable. Surface mount tabs provided.