A CCTV power supply box, also known as a power distribution box, allows surveillance system installers to easily manage the power to multiple CCTV cameras at a central point (usually at the location of the DVR). This allows your camera installation to be neater. 18 Port 20 Amp High Power Security CCTV Camera Access Control Power Distribution Box 12V DC PTC Protection, with 18 Pcs. Multiple Port Options - Available configurations include 4 port 5 amp, 9 port 5 amp, 9 port 10 amp, 18 port 10 amp, and 18 port 20 amp options. Our power supply boxes. 【Long-lasting Performance】With an independent PTC fuse and LED indicator for each output, our power supply box offers general protection, guaranteeing reliability for over 100,000 hours of continuous operation. Combined with RG59U siamese cable or video baluns, wiring becomes neater and easier to manage from one source.