APC Smart-UPS RC 3000 - UPS - AC 220/230 V - 2.1 kW - 3000 VA - RS-232 - output connectors: 9 - 4U - black

Dataline surge protection. Provides protection of connected equipment from power surges on the data lines Helps save energy - designed to limit the energy used by other products, potentially helping you reduce your carbon footprint and save money.