A DC male power cable is typically used in the electronic industry to connect adapters to your circuit board. The most common used DC male power cable is the 2.1mm x 5.5 mm DC jack. This cable provides a secure connection and quick transmission. It works with a power adapter or a power supply box. This cable is made of 100% pure copper wire with a heavy duty 18AWG conductor. The black and red jacket indicates the polarity. It is flame retardant / anti sun / antioxidant / anti-aging PVC plastic which is flexible and . The pre-tinned copper clad ends easy to weld and install. It is compatible with all CCTV security surveillance camera systems and other 2.1x5.5mm DC power devices such as routers, LED lighting and Power Adapters. Made of 100% pure copper wire Type: 5.5mmx2.1mm plug Current amps: 5A Cable length about: 26cm Color: Black & red Material: PVC Package Contents: 100 Pigtail Cable Plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.