APC SUA1000RM2U Smart-UPS 1000VA 120V USB/Serial 2U Rackmount UPS System (Discontinued by Manufacturer) Crest Factor: Up to 5:1 Waveform Type: Sine wave Output Connections: 6x NEMA 5-15R Nominal Input Voltage: 120 V Input Frequency: 50/60 Hz 3 Hz (auto sensing) Input Connections: NEMA 5-15P Cord Length: 2.44 meters Input voltage adjustable range for mains operation: 75 ~ 154 V Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leak-proof Typical recharge time: 3 hour(s) Replacement battery cartridge: CURK23, RBC23 RBC Quantity: 1 Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leak-proof Typical recharge time: 3 hour(s) Replacement battery cartridge: CURK23, RBC23 RBC Quantity: 1 Typical Backup Time (at Full Load): 8.8 minutes (670 Watts) Output Power Capacity: 670 Watts / 1000 VA Max Configurable Power: 670 Watts / 1000 VA Nominal Output Voltage: 120 V Output Voltage Distortion: Less than 5% at full load Crest Factor: Upto 5:1 Waveform Type: Sine wave Output Connections: 6x NEMA 5-15R Nominal Input Voltage: 120 V Input Frequency: 50/60 Hz  3 Hz (auto sensing) Input Connections: NEMA 5-15P Cord Length: 2.44 meters Input voltage adjustable range for mains operation: 75 ~ 154 V Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof Typical recharge time: 3 hour(s) Replacement battery cartridge: CURK23, RBC23 RBC Quantity: 1 Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof Typical recharge time: 3 hour(s) Replacement battery cartridge: CURK23, RBC23 RBC Quantity: 1 Typical Backup Time (at Full Load): 8.8 minutes (670 Watts) Interface Port(s): DB-9 RS-232, SmartSlot, USB Available SmartSlot Interface Quantity: 1 Control panel: LED status display with load and battery bar-graphs and On Line, On Battery, Replace Battery and Overload Indicators