Generic gaer 1 to 8 DC Power 8-Port Splitter Adapter Adaptor Cable for CCTV DVR Security Cameras 1 DC Female to 8 Male Power Splitter Cable Plug Diameter: 2.1mm inner, 5.5mm outer Convenient and cost effective way to power up 8 cameras with 1 power adapter This DC Power Adapter Y Cable Pigtail splits 1 power signal into 8 and is useful for powering multiple cameras from one central adapter