Features: High-quality chips, DC-DC converter, high conversion efficiency. Good stability, can output high current, quiescent current is small. DC drive cable can not only play the role of power adapter, while also serving to effectively suppress harmonic current noise. Using a wide range, suitable for all 7.2V-8.4V digital camera and video camera. This product only coupled with a power bank 5V 2A above, would can give the digital camera power supply, no need to bring the camera grip or carry more batteries, camera insert battery grip will too heavy, is not conducive to taking pictures. Applicable models: For Canon EOSM, M2, M10, M50, M100, M200, M50 Mark II Note 1.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. 2.Some mobile phone/tablet usb charger with identification resistance, can not identify the camera, the current can not meet the requirements, it is not recommended. 3.In order to make your camera work better, please use a high-quality mobile power, mobile power bank is output guarantee of at least 5V 2AMP current. When the power is not enough, will not start or can not shoot properly, Please select a larger current of at least 2.4A . Package Includes: 1 x DC Drive Cable ACK-E12 1 x DC Coupler DR-E12 IF YOU HAVE ANY QUESTION, PLEASE CONTACT US, WE WILL SOLVE IT FOU YOU AS SOON AS POSSIBLE.