The APC Smart-UPS On-Line SRTG5KXLI is a 5kVA/5kW double-conversion online UPS that protects servers, storage and network equipment with zero transfer time, so connected gear keeps running straight through outages and load-shedding. It outputs a pure sine wave at 220-240V with around 2% distortion, and offers ECO mode for better efficiency on clean mains. The 4U rack/tower convertible chassis has an LCD display, two IEC C13 and one IEC C19 outlets plus a hardwired output, and provides USB, serial, EPO and a SmartSlot with a network management card already included for remote monitoring and PowerChute shutdown. The internal 96V VRLA batteries are hot-swappable and recharge in about four hours, with automatic battery self-tests and cold start supported. The unit measures 440 x 620 x 178 mm and weighs 51.9 kg. This listing carries a 3-year warranty on the UPS and 2 years on the battery. Note that the SRTGRK1 rail kit for rack mounting is sold separately. After comparing online prices, www.marvel.co.za should be the cheapest on this product.