SC420I Review
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SC420I APC Smart-UPS SC 420VA 230V Input/Output Voltage, DB-9 RS-232 Interface Port
APC Smart-UPS SC 420VA 230V Input/Output Voltage, DB-9 RS-232 Interface Port, 260 Watts Output Power Capacity, 320 Joules Surge Energy Rating, Resettable circuit breakers, LED status Indicators, Network Manageable, Adjustable Voltage Sensitivity.