Amcrest 4-Camera 12V Power Supply for 960H, 720p/1080p HDCVI, and Analog Security Cameras (Black) This power supply is compatible with Amcrest 960H, 720p/1080p HDCVI, as well as Analog DVR systems. United States and Canada Standard DC Power Supply (12 volt - 1.5A). Power up to 4 Cameras with 1 plug! Amcrest 4-Camera 12V Power Supply is 1.5 meters or 5 feet long. Do-It-Yourself Installation.