CyberPower ST425 8-Outlet Standby UPS

CyberPower

ST425

8-Outlet Standby UPS:

The CyberPower ST425 Standby UPS is an affordable, compact uninterruptible power supply ideal for protecting home offices, workstations, entertainment systems, and network gear from unexpected outages and power surges. With a capacity of 425 VA / 260 W and 8 outlets×4 offering battery backup and surge protection, and 4 offering surge protection only×it gives you flexible protection for multiple devices. Featuring ENERGY STAR certification and CyberPower's efficient GreenPower UPS' design, it minimizes energy waste while maintaining readiness. Its sleek, compact chassis can be placed under a desk or behind equipment racks, making it a perfect fit where space is at a premium.

Features

The ST425utilizes standby (offline) topology with simulated sine wave output, offering a cost-effective UPS solution for non-critical IT equipment. When normal AC utility power is present, your devices run directly from the grid; upon power disruption, the unit switches to battery mode in about 8 ms×enough time to sustain computers, routers, and consoles, giving you time to save work or trigger automatic shutdowns.

Advanced Options

It includes 890 J surge suppression, EMI/RFI noise filtering, and transformer-spaced outlets to accommodate large adapters without blocking other plugs. The GreenPower UPS' design reduces power consumption, lowering heat and operating costs×while ENERGY STAR certification reinforces its efficiency credentials. Auditory alarms and LED indicators inform you of battery mode, low battery, overload, or fault conditions.

Product Key Features

• 425 VA / 260 W standby UPS with simulated sine wave output

• 8 NEMA 5-15R outlets (4 battery-backup + surge, 4 surge-only)

• Ultra-efficient GreenPower UPS' design + ENERGY STAR certified

• 890 J surge suppression with EMI/RFI filtering

• Transformer-spaced outlets to accommodate large adapters

• Audible alarms and LED status indicators

• Compact form factor (8.3 × 4.5 × 3.2 in)

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Reliability & Performance

The CyberPower ST425 is engineered for dependable performance in everyday IT and home environments. Its standby UPS topology ensures your devices are instantly backed by battery power within milliseconds of a power loss, preventing damage and data loss. The sealed lead-acid battery is both reliable and field-replaceable by a qualified technician, with typical recharge time of about 8 hours×ensuring readiness for future outages.

Key Features :

• 425 VA / 260 W capacity

• Standby (offline) UPS with simulated sine wave

• 8 total outlets: 4 battery + surge, 4 surge-only

• GreenPower UPS' energy-saving design

• 890 J surge suppression with EMI/RFI filtering

• Transformer-spaced outlets

• Audible alarms and LED status indicators

• Compact dimensions: 8.3 × 4.5 × 3.2 in

• Replaceable sealed lead-acid battery

• 3-year warranty + $75,000 equipment guarantee

Specifications :

Specification	Details
Model Number	ST425
Topology	Standby (Offline)
Output Capacity	425 VA / 260 W
Output Waveform	Simulated Sine Wave
Outlets	8 × NEMA 5-15R (4 battery + 4 surge)
Surge Rating	890 J
Surge/Noise Filtering	EMI/RFI
Battery Type	12 V / 2.9 Ah SLA
Recharge Time	~8 hours
Runtime at Half Load	~6 minutes
Runtime at Full Load	~1.5 minutes
Transfer Time	~8 ms
Input Voltage Range	96-140 VAC, 47-63 Hz
Dimensions (W×H×D)	8.3 × 4.5 × 3.2 in (211 × 114 × 81 mm)
Weight	~3.8 lb (1.72 kg)
Warranty	3 years
Connected Equipment Guarantee	$75,000