This APC Back-UPS offers reliable power and surge protection for wireless networks, computers, gaming consoles and other electronics in your home or business. The 2200VA tower UPS has 4 total outlets, all of which provide battery back up and surge protection. It has a surge energy rating of 273 Joules. It features Automatic Voltage Regulation to smooth out voltage fluctuations from mains power supply without swtching to battery. This UPS has a 2-year warranty and CE product certification. It is compatible with a dedicated user-replaceable battery, and the APC replacement battery cartridge helps restore UPS performance to the original specifications. It comes with a USB communication port for PowerChute Serial Shutdown software interface. It has a one-step battery connector that gets your UPS operational with a quick slide of the lock.