Buy on Amazon : http://www.amazon.com/gp/product/B003EJFTOQ?tag=lottalatte-20

VideoSecu 2 of 50 Feet Camera Video Power Extension Cables with 2 of 12V DC 500mA Power Supplies

Video power extension cable with power supply kit for CCTV security camera DVR system
2 of 50 feet videopower cables in black
2 of 12V 500mA power supplies with 6ft Long Cord 21mm Plug
Every videoPower cable connectors has BNC and includes 2 RCABNC adapters
Plug and Play ready For camera with DC power only