Excellent performance because of quality materialsPure copper brings reliable, secure connections and rapid transmission. Specification:- Connector Type: DC 1 Female to 4 Male Connector (5.5mmx2.1mm)- Total length: 40cm / 15.7 inch- Wire OD: 2.5mm-Maximum Transmission Current:20A- Operating Temperature: -50C to + 68C-Material:PVC,Alloy- Wire material: pure copper core ( oxygen free copper / non recovery copper)- Plastic material: new flame retardant / anti riot sun / antioxidant / anti-aging PVC plastic Package Contents2pcs x Black 1 Female to 4 Male DC Power Cable