ASRock Phantom Gaming PG-850PSF 850W SFX Platinum PSU
ASRock
ASRock Phantom Gaming PG-850PSF 850W SFX Platinum PSU
The ASRock Phantom Gaming PG-850PSF is an 850W SFX power supply built for compact gaming builds and mini-ITX systems. It combines 80 PLUS Platinum efficiency with Cybenetics Platinum and LAMBDA A++ acoustic certification, delivering low noise and high energy efficiency in a small footprint. A 10-year warranty backs the unit's reliability.
Why this product
SFX form factor for compact builds
Standard SFX dimensions fit mini-ITX and Micro-ATX cases where full-size ATX power supplies won't fit. Fully modular cables keep tight spaces uncluttered.
80 PLUS Platinum efficiency rating
Delivers 90% efficiency across most load ranges, cutting energy waste and heat output compared to lower-rated units.
LAMBDA A++ acoustic certification
Cybenetics-verified for ultra-quiet operation. The 92mm fluid dynamic bearing fan stays off at low and medium loads, activating only when needed.
PCIe Gen 5.1 and ATX3.1 ready
Supports current high-end graphics cards and future system standards. Native 12V-2x6 connector with TempGuard thermal monitoring handles up to 600W to the GPU.
Handles 235% peak power excursion
Responds swiftly to power spikes without cutting off, keeping your system stable during sudden load changes.
10-year warranty
ASRock backs the unit for a full decade, backed by 100% Japanese capacitors chosen for reliability.
- Wattage850W
- Form FactorStandard SFX
- Efficiency Rating80 PLUS Platinum
- Fan Type92mm Fluid Dynamic Bearing
- Warranty10 Years
- Cybenetics CertificationPLATINUM and LAMBDA A++
- SKUASR-3349
- EAN4711581492516
- All standard SFX cases and mini-ITX system builds.
- Micro-ATX builds where the smaller footprint is an advantage.
- Current systems and future builds compliant with ATX12V V3.1 and PCIe Gen 5.1.
- Systems with GPU power demands above 600W may require careful cable management but are within the unit's 850W total capacity.
- Full-size ATX cases requiring standard ATX form factor power supplies.
Best for
- Mini-ITX builders needing efficient, quiet power in tight spaces.
- Gaming enthusiasts who prioritize low noise and energy savings.
- Users building future-ready systems with next-gen GPUs and standards.
- Anyone seeking long-term reliability with a decade-long warranty.
Trade-offs
- Builders constrained to standard ATX form factor cases; this is SFX only.
- Systems requiring more than 850W total power delivery.
- Budget-conscious buyers; Platinum efficiency and acoustic certification add cost versus Bronze or Gold rated units.
Designed for gaming enthusiasts, the compact evolution of Phantom Gaming: the SFX Power Supply unit with 80 PLUS Platinum efficiency certification and Cybenetics Platinum ratings, along with LAMBDA A acoustic certification, it guarantees superior energy efficiency and low noise operation.
*The Cybenetics certification on the packaging has been updated. Some earlier units may not show the badge. For the latest certification details, please visit the official Cybenetics website. Product specifications and performance remain unchanged.
The Phantom Gaming series power earning the prestigious Cybenetics Lambda A++ certification. This recognition underscores the Phantom Gaming series' outstanding noise control performance, making it an exceptional choice for users seeking ultra-quiet operation.
The ASRock Phantom Gaming SFX series power supply supports both current and future standards, fully compliant with ATX12V V3.1 and PCIe Gen 5.1. Ideal for both current systems and future builds, this power supply can handle up to 235% power excursion and respond swiftly to power spikes, ensuring reliable, safe power for your components.
Compatible with all SFX cases and suitable for mini-ITX system builds. Offering exceptional installation flexibility and clean cable management for Mini-ITX and Micro-ATX builds.
With ASRock Classic Green connectors, users can easily see if the connector has been plugged properly. The NTC sensor at the VGA connector monitors the temperature and sends signal the PSU to ensure safe operation.
Built-in 5V BOOST function boosts the +5V voltage to maintain optimal performance. If no voltage drop occurs, the PSU will regulate the +5V rail to approximately +5.15V, ensuring consistent power delivery.
The power supply runs more efficiently. The fan stays off during low to medium loads, reducing noise and improving energy efficiency. The fan only activates when the load or temperature increases.
The fluid seal design and the herringbone structure provides an extremely long lifespan and noise minimization.
General
| Brand | ASRock |
|---|---|
| Model | PG-850PSF |
| Wattage | 850W |
| Form Factor | Standard SFX |
Efficiency & Certification
| Efficiency Certification | 80 PLUS Platinum |
|---|---|
| Cybenetics Certification | PLATINUM and LAMBDA A++ |
| Peak Power Excursion | Up to 235% |
Connectors & Power Distribution
| GPU Connector | Native 12V-2x6 (12+4pin) Dual Color with TempGuard — up to 600W |
|---|---|
| ATX Standard Compliance | ATX12V V3.1 |
| PCIe Standard Compliance | PCIe Gen 5.1 |
| Cable Design | Fully Modular |
Physical & Thermal
| Dimensions | 100mm (D) x 125mm (W) x 63.5mm (H) |
|---|---|
| Fan | 92mm Striped Axial Fluid Dynamic Bearing (FDB) Fan |
| Fan Control | Auto iCool Intelligent Fan Control |
| Capacitors | 100% Highly Reliable Japanese Capacitors |
| Warranty | 10 Years |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.