Conwork 20-Pack [10 Male + 10 Female] CCTV Security Camera 2.1 x 5.5mm DC Power Plug Pigtail Cable -9 inch (Black/Red) This DC power pigtail connects your security cameras to your power box/power adapter It features a coaxial power plug on one end to two bare wires on the other Black and red wire jackets indicate polarity Approximately 9 inches in length. It provides a simple solution for power connectivity Package Contents: 20 x Pigtails DC Power Cable. Lifetime Warranty.