A 15kVA rack-mount version of APC's Smart-UPS RT line at 230V — the listing here is minimal, so it's not clear whether this specific unit includes a network management card or extended battery support the way some other SURT-prefixed models in this catalog do. Like the rest of the Smart-UPS RT family, it uses double-conversion online technology for continuous, regulated power output rather than a transfer-based standby design. Rack-mount format suits server-room and data-centre deployment. Bought by IT teams protecting server and networking racks from outages and poor-quality mains power, particularly relevant in markets with frequent load shedding.