Powerware Corp. (Raleigh, NC) recently announced an addition to its line of uninterruptible power supplies (UPSs), the Powerware 5140 rack-mount UPS. The Powerware 5140 is designed to provide 6kVA of power. The Powerware 5140 is designed with a unity power factor rating, which makes it ideal for the demands of Power Factor Corrected (PFC) power supplies according to the company. The unit occupies only 6U (10.5 inches) of rack space and incorporates Powerware's Advanced Battery Management (ABM) system. The Powerware 5140 offers optional Extended Battery modules which allow anywhere from 30 minutes to 3 hours of backup time, depending on the load. The 5140 also features hot-swappable batteries and manual bypass switch. The Powerware 5140 is currently available with pricing starting at $5,599.