Sound Storm Laboratories SVA7 Video Signal Amplifier with Single Video Source Input and 7 Video Outputs One Video RCA input 7 Video RCA Outputs Amplifies video signal to maintain picture quality in multi monitor systems This unit is design for in car use and requires 12 Volt DC power input to work (you can connect this unit directly to your 12 volt DC car wiring) In order to use this unit for home equipments you need to purchase 120v AC to 12v DC 1A/1000mA power adapter (not included in with this unit). One Video RCA input 7 Video RCA Outputs Amplifies Video Signal to Maintain Picture Quality in Multi-Monitor Systems