This is an Eaton 9SX External Battery Module (EBM), an add-on battery pack that plugs into a compatible Eaton 9SX UPS (specifically the 8-11kVA models at 240V, as noted in the model text) to extend how long connected equipment stays powered during an outage. A UPS's built-in battery alone typically only bridges a short outage; adding one or more EBMs increases total runtime, which matters for data centres, server rooms and businesses that need equipment to stay up through longer power cuts — a relevant consideration in South Africa's load-shedding context. This is a battery expansion accessory, not a standalone UPS, and only works paired with a compatible 9SX unit already in service.