Features: Features overcharge protections, overcurrent protections, short circuits protections, and over discharge protections, ensuring stable power supply for your devices. Equipped with two output port, this backup power adapters can power two devices simultaneously. It provide stable and uninterrupted power for your devices. Its portable and space saving design allows you to conveniently fit it in your bag or suitcases. Suitable for cameras, portable player, access control systems, security monitoring systems, cameras, fingerprints attendance machines, and fire safety systems. Specifications: Materials: ABS and PC Size: about 16.86x7.86cm/6.64x3.09inch Input: 100-240V~50-60Hz 2.5A Output: 19-4740mA Package Includes: 1Pc Uninterruptible Power Supply note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.