The APC Smart-UPS RT SRT10KXLi is a 10kVA double-conversion online UPS with an LCD graphics display, here bundled with an AP9619 network management card (pre-installed in its smart slot) that adds remote monitoring, alerting, and environmental sensor support over the network. It supports connection of extended-run external battery packs (SRT192BP2) for longer backup runtime beyond the internal batteries, and can be converted to a 6U rackmount form factor using two SRTRK2 rail kits, with an included cooling fan accessory. Online double-conversion topology gives a seamless, gap-free transfer to battery on mains failure. Aimed at server rooms and small data centres needing serious, monitorable backup power rather than basic desktop protection.