"Mini DC UPS designed for routers, modems, and CCTV cameras. Provides stable backup power during electricity outages. Compact, reliable, and easy to use. 1 Year Warranty" Features: Built-in adapter allows wide AC voltage range 85Vac-265Vac. Built-in high capacity lithium batteries, provides long backup time to loads. Suitable for most digital device. Power over Ethernet (POE) can transmit the data and power at the same time to simplify wire set. 5V USB output, can provide charging for mobile phone, PSP, PDA, IPOD, MP4..etc. Intelligent circuit design with over-charging, over-discharging and short circuit protections.