CyberPower ST900U-R 900VA/500W 12-Outlet Standby UPS - New Battery Certified Refurbished

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CyberPowerSKU: ST900U-R

Sale price$79.99 Regular price$107.99
  • Shipping: FREE SHIPPING on orders $50+
  • Condition: Refurbished
    This product has been refurbished by the manufacturer or an authorized third party
  • Warranty: 1 Year Manufacturer Warranty


CyberPower ST900U-R 900VA/500W 12-Outlet Standby UPS - Certified Refurbished st900u-1.jpg


The ST900U Standby UPS from CyberPower provides you with battery backup power and surge protection to ensure your devices stay operational in critical situations. It's equipped with 12 NEMA 5-15R outlets, some of which are spaced to better fit larger plugs. The 12 outlets deliver a surge rating of 890 joules, and six of these outlets are powered by an internal battery that grants connected equipment a full-load runtime of up to 2 minutes in the event of a power failure. Other notable features include onboard LED indicators and audible alarms to alert you when a situation does occur. In addition, the UPS comes with EMI/RFI filtration.


  • 900VA / 500W Simulated Sine Wave UPS
  • 12 x NEMA 5-15R Outlets
  • 2 x USB Type-A Ports
  • EMI/RFI Filters

Battery Backup

Supplies power long enough for equipment to properly shut down when utility power fails, thereby preventing loss of data and minimizing component stress caused by a hard shutdown.

Surge Protection

Diverts excess voltage away from sensitive electronic equipment during an AC power surge or power spike to prevent damage.

Simulated Sine Wave Output

Uses pulse-wave modulation to generate a stepped, approximated sine wave to supply cost-effective battery backup power for equipment that does not require sine wave output.

GreenPower UPS High-Efficiency Design

Reduces power consumption, utilizing a compact charger and power inverter to create an efficient backup power system for home and office use.


Total Outlets 12 x NEMA 5-15R
Protected Outlets 6 x NEMA 5-15R (Surge Only)
  6 x NEMA 5-15R (Battery and Surge)
Plug Type NEMA 5-15P
USB Charging Ports 2 x USB Type-A (2.1 A)
Communications USB via Type-B
Surge Energy Rating 890 Joules
Maximum Wattage 500 W
Input Voltage Range 96 to 140 VAC
Input Voltage Adjustable Range 47 to 63 VAC
Nominal Output Voltage 120 VAC
Output Frequency 50/60 Hz ± 1%
Load Capacity 900 VA
Circuit Breaker Rating 15 A
Waveform Simulated Sine Wave
Battery Capacity 86.4 VAh
Chemistry Lead-Acid
Full-Load Runtime 2 Minutes
Half-Load Runtime 7.5 Minutes
Charging Time 1 to 8 Hours
Operating Temperature 32 to 104°F / 0 to 40°C
Operating Humidity 0 to 95%
Storage Temperature 5 to 113°F / -15 to 45°C
Operating Altitude 9842' / 3000 m
Storage Altitude 49,212' / 15,000 m
Cable Length 5' / 1.52 m
Rackmount Size None
Dimensions (W x H x D) 12.2 x 3.1 x 7" / 309.88 x 78.74 x 177.8 mm
Weight 7.7 lb / 3.49 kg
Packaging Info
Package Weight 9.385 lb
Box Dimensions (LxWxH) 15 x 9.5 x 4.5"

CyberPower ST900U-R 900VA/500W 12-Outlet Standby UPS - New Battery Certified Refurbished

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