This product is part of the Back-UPS range. The BK550EI features a total of 6 power outlets, 3 of which are UPS battery backup and 3 that are surge only. Its runtime at 100W is 24 minutes 20 seconds It provides data line protection with a RJ45 analog phone line for phone or fax or modem or DSL. Its dimensions are 16.5 x 9.1 x 28.4 cm and 6.32kg. The BK550EI ensures office systems and their valuable data are protected from dangerous power surges, spikes and blackouts.