CyberPower ST900U 12-Outlet Standby UPS

BH #CYST900U • MFR #ST900U
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CyberPower ST900U 12-Outlet Standby UPS
Key Features
  • 900VA / 500W Simulated Sine Wave UPS
  • 12 x NEMA 5-15R Outlets
  • 2 x USB Type-A Ports
  • EMI/RFI Filters
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.
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CyberPower ST900U Overview

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.

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.
Connected Equipment Guarantee
CyberPower will repair or replace properly-connected equipment (up to $125,000) if damaged by a power surge.
UPC: 649532621521

CyberPower ST900U Specs

Key Specs
Total Outlets
12x NEMA 5-15R
Plug Type
NEMA 5-15P
Surge Protection
Yes: 890 Joules
Maximum Wattage
500 W
Full-Load Runtime
2 Minutes
General
Total Outlets
12x NEMA 5-15R
Protected Outlets
6x NEMA 5-15R (Surge Only)
6x NEMA 5-15R (Battery and Surge)
Plug Type
NEMA 5-15P
USB Charging Ports
2x USB-A (2.1 A)
Communications I/O
USB via USB-B
Topology
Standby
Transfer Time
< 8 ms
Power
Surge Protection
Yes: 890 Joules
Current
15 A
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
Waveform
Simulated Sine Wave
Battery
Battery Capacity
(86.4 VaH)
Chemistry
Lead-Acid
Full-Load Runtime
2 Minutes
Half-Load Runtime
7.5 Minutes
Recharge Time
1 to 8 Hours
Number of Batteries
1
Physical
Operating Conditions
32 to 104°F / 0 to 40°C up to 95% Humidity
Certifications
CEC, FCC, RoHS, UL, cUL
Cable Length
5' / 1.52 m
Rackmount Size
No
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
8.8 lb
Box Dimensions (LxWxH)
15 x 9.5 x 4.5"

CyberPower ST900U Reviews

Lots of Slots

By Warren
Rated 5 out of 5
Date: 2020-12-28

The typical number of outlets on these things is 8, which really is limiting for me. 10 is better but still leaves me needing a power strip. With 12 on the ST900U I don't need any auxiliary Mickey Mouse additions adding to the rat's nest of wiring!

See any errors on this page?

If this only backs up 100 watts of power will it ...

If this only backs up 100 watts of power will it last for 10 minutes since it lasts for 2 minutes with 500 watts?
Asked by: Elliott
The CyberPower ST900U 12-Outlet Standby UPS BH #CYST900U can run for approximately 31.7 minutes at a 100W load.
Answered by: Miguel M
Date published: 2023-01-17

Does this communicate via usb to equipment?

Does this communicate via usb to equipment?
Asked by: daniel
Hello daniel, Yes, this unit communicates via USB to equipment. Thank you for your question.
Answered by: TechSupport
Date published: 2019-02-27
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