SilverStone
SilverStone ST1500 1500W ATX
Best power supply for high-end workstations and extreme gaming builds.
The SilverStone ST1500 is a high-capacity ATX power supply unit designed for demanding computer systems. It delivers a robust 1500W output, ensuring stable power delivery even under heavy loads. This unit meets the Silver Certified efficiency standard, optimizing energy usage and performance. Fully supporting 12V 2.3/ EPS 12V standards, it's a versatile and powerful component for high-end builds and workstations requiring consistent, top-tier power.
$269.95
Owner Satisfaction
4.6
/ 5
Category Rank
230
/ 1062
#230 in Computer Power Supplies
Price vs Category Average
-71%
Below average
Wattage
1500
/ W
Who it's for
- Power users running multi-GPU setups and extreme overclocked systems
- System builders prioritizing stable power for high-performance components
- PC enthusiasts wanting clean cable management and improved case airflow
Who should skip it
- Quiet-computing fans sensitive to fan noise during heavy system loads
- Owners of compact or mid-tower cases with limited mounting space
- Energy-conscious users seeking maximum efficiency ratings for long-term operation
Performance breakdown
Power Headroom
Massive 1500W output handles extreme multi-GPU setups with ease.
Energy Efficiency
Silver certification provides reliable efficiency for high-demand workstation builds.
Build Reliability
Engineered for consistent, stable power delivery under heavy continuous loads.
Standard Compatibility
Broad support for EPS 12V ensures compatibility with professional-grade motherboards.
Form Factor Versatility
Standard ATX sizing fits most high-performance tower chassis configurations.
Load Stability
Maintains rock-solid voltage regulation even when pushed to capacity.
Key Specs
Wattage
1500W
Form Factor
ATX
Certification
Silver Certified
Standard Support
12V 2.3/ EPS 12V
Model Number
ST1500
Efficiency Rating
80 Plus Silver
ATX Version
ATX 2.3
Features
- Massive 1500W continuous power output
- High efficiency with Silver Certification
- Standard ATX form factor compatibility
- Supports modern 12V 2.3/ EPS 12V
- Robust and reliable operation
- Ideal for power-hungry systems
What customers say
The SilverStone ST1500 power supply is highly regarded as a reliable core component for extreme power users. Customers consistently praise its exceptional stability and consistent ability to deliver its full 1500W capacity, even under sustained heavy loads from multi-GPU setups or overclocked systems. The robust build quality inspires confidence when powering expensive hardware, reflecting a high degree of trust in SilverStone's engineering for high wattage. While performance is excellent, some users note that the fan noise increases significantly when the unit is pushed to its absolute limits. Despite minor installation considerations due to its size, the ST1500 is viewed as a premium investment that successfully meets demanding needs through superior power headroom and reliability.
Know before you buy
Yes, this unit follows the standard ATX form factor, meaning it will fit into most mid-tower and full-tower cases designed for ATX power supplies.
This unit is designed for high-end workstations, multi-GPU setups, or enthusiast builds that require significant, consistent power to maintain stability under heavy, sustained workloads.
The 80 Plus Silver certification indicates that the power supply maintains at least 85% efficiency at typical loads. This helps reduce wasted electricity as heat and lowers your overall power consumption compared to non-certified units.
Yes, the ST1500 fully supports EPS 12V standards, ensuring it is compatible with the power delivery requirements of modern high-performance motherboards and processors.
It is likely overkill for a standard office PC. This unit is specifically engineered for power-hungry systems; for basic computing, a lower-wattage unit would be more cost-effective and energy-efficient.
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$270