1.DC drive cable can not only play the role of adapter,while also serving to effectively suppress harmonic current noise. 2.High-quality chips,high conversion efficiency. 3.Good stability,can output high current,quiescent current is small. 4.DC drive cable connected bank supply for digital cameras, bank capacity: 8000-30000mAh,equal to the new battery in the camera's many times;When you turn on the flash to take pictures or video,to provide uninterrupted supply. 5.Using a wide range,suitable for all 7.4V-8.4V digital camera and video camera, Support part 9 v digital products Provide adequate for the camera, is Wedding with the film, outdoor photography, video filming, travel and other best tool. Compatible Camera Model: For Alpha ZV-E10, A7R , A7 , A7II , A7RII , A7SII ,A7S,A7M2,A7R2; A6300 A6400 A6500 A6000 A6100 A5100 A5000 A3000; For Alpha NEX5 NEX7; For Alpha SLT-A33 SLT-A35 SLT-A55 SLT-A37; For DSC-RX10; Note: 1.In order to make your camera work better,Please use a high-quality mobile , bank is output guarantee of at least 2A current. 2. Do not use the computer USB supply for the camera,because most computer USB 2.0 output voltage is 5V,But the current is less than 500mA. 3.Recommended to use High-quality bank; the bank capacity is , usage time is longer. Colour:black Material:Plastic + Metal Package Contents: 1 x NP-FW50 Dummy Battery 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.