Universal Charger -DC Coupler Power Cable Highlights generic brand DC Coupler Power Cable Description: USB-4017 Power Cable + EP-5 DC Coupler Dummy Battery (EN-EL9 Replacement Battery) for Nikon D40 D60 D3000 D5000 camera. Its power connector, DC tip is 4.0*1.7mm. DC-DC converter, high conversion efficiency. Good stability, can output high current, quiescent current is small. USB Power Input: 5V, 2A-4A (at least 2A current, up to 4A if needed); DC output: 8.0V. Specification: Modell: USB Power Adapter + EP-5 DC Coupler (EN-EL9 Dummy Battery) Input: 5V 2-4A Output: 9V 4.5A USB Cable Length: 120cm DC Coupler Cable Length: 33cm Compatible with: for Nikon D40 D40X D60 D3000 D5000 Package includes: 1 piece EP-5 DC coupler 1 piece USB-4017 power cable