APC Battery Backup Surge Protector, BX850M Backup Battery Power Supply, AVR, Dataline Protection,12.2 x 3.58 x 7.48 inches (Black)

This APC battery back up power supply offers guaranteed power and surge protection for wireless networks, computers, and other electronics in your home or business. Backup battery power supply is designed for use during outages and unsafe voltage fluctuations, and provides surge protector with battery backup in the event of damaging power surges and spikes. The APC Back-UPS PRO series of Uninterruptible Power Supply are the perfect battery backup for computer, external harddrive and routers to protect your data and keep you connected. This APC 850VA UPS offers AVR, is active PFC compatible, and has a User-replaceable battery to prolong the life of your UPS by APC.

Make sure this fits by entering your model number.
850VA / 510W battery backup power supply
8 Outlets (NEMA 5-15R): 4 surge protector with battery backup; 4 outlets with Surge Protection Only
1 GB network dataline protection, 6′ Power Cord, right-angle 3-prong wall plug (NEMA 5-15P), and free Windows PC power-management software (Mac OS uses native “Energy Saver” Settings)
Automatic Voltage Regulation (AVR): instantly corrects low/high voltage fluctuations without discharging the battery, and is Active PFC compatible
Replaceable Battery. Easily replace the back up battery with a genuine APC replacement battery, model RBC17 (sold separately)
Energy-Star Certified: This UPS meets the Energy Star Program Requirements for product specification: Uninterruptible Power Supplies (UPS)