The Eaton 9PX 1500i is a 1500VA, 200-240V online (double-conversion) UPS in a convertible rack/tower form factor — it can be deployed as a standalone tower unit or mounted into a 2U slot in a server rack (RT2U), with the mounting rail kit included in this listing so no separate purchase is needed for a rack install. Like other Eaton 9-series units, the online topology means it continuously runs the protected load through its inverter rather than switching to battery on failure, giving zero transfer-time protection — suited to a small server, network switch stack, or other equipment sensitive to even brief power interruptions, a common load-shedding-protection deployment in South Africa.