This is an APC Easy UPS On-Line unit using lithium-ion battery technology rather than traditional lead-acid, giving it a smaller footprint, lighter weight and typically longer service life than an equivalent-capacity lead-acid UPS. It's rated at 3000VA/230V, uses true online double-conversion topology (meaning connected equipment runs continuously off the inverter rather than switching over during an outage, giving zero transfer time), and this 'RT' extended-runtime model is designed to support extra external battery packs for longer backup time than the base unit alone provides. It ships with a rail kit for mounting in a server rack, though it's convertible for tower/floor-standing use too. Aimed at protecting servers, networking equipment and other critical IT load through power outages — directly relevant to South African load-shedding — rather than a small consumer UPS for a single desktop.