20 x 10 inch 2.1 x 5.5 mm DC Power Pigtail Male Plug
Use this DC power pigtail to connect your security cameras to your power distribution system or power adapter. It features a male coaxial power plug on one end to two bare wires on the other. Black and red wire jackets indicate polarity. Approximately 10 inches in length. It provides a simple solution for power connectivity.
The inner diameter is 2.1mm,outer diameter is 2.5mm,the length of cable is 30cm.