Thermaltake
Toughpower SFX 850W 80Plus Platinum ATX 3.1 Standard Power Supply; 450W 12V-2x6 Connector Included; Full Modular; 90mm FDB Fan; PS-STP-0850FNFAPU-1; 7 Year Warranty
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
The Toughpower SFX Platinum series is built to support next-gen hardware, meeting the latest Intel SFX 12V 4.1 and ATX 12V 3.1 standards. With its native PCIe 12V-2x6 (12+4pin) modular interface, it efficiently powers PCIe 12+4pin graphics cards. This series not only achieves 80 PLUS Platinum efficiency but also guarantees stability, durability, and reliability. The dimensions of the Toughpower SFX Platinum measure 125mm(W) x 63.5mm(H) x 103.8mm(D).
SpecPicks Verdict
SpecPicks classifies Thermaltake Toughpower SFX 850W 80Plus Platinum ATX 3.1 Standard… as a solid pick with broad community endorsement in the power supplies category, based on 412 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Thermaltake's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.2★ customer rating
- ✓ 80Plus Platinum certified compact power with limitless performance
- ✓ Backed by Thermaltake's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 80Plus Platinum certified compact power with limitless performance
- PCIe Gen 5.1 ready and fully compatible with ATX 3.1 standards.
- Fully modular low-profile cables
- ＜30mV Low Ripple Noise; Extremely Strict Voltage Regulation ＜±2%; 17ms and up Hold Up Time
- 7 Year Warranty
Full Specifications
| Brand | Thermaltake |
|---|---|
| Wattage | 850 watts |
| Model Name | Toughpower SFX 850W |
| Unit Count | 1.0 Count |
| Form Factor | SFX |
| Model Number | SFX-0850AH8FLP |
| Connector Type | ATX |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 850 |
| Item Dimensions | 4.05 x 4.9 x 2.5 inches |
| Mfr Part Number | PS-STP-0850FNFAPU-1 |
| Compatible Devices | PC |
| Power Supply Design | Full Modular |
Ready to buy?
Thermaltake Toughpower SFX 850W 80Plus Platinum ATX 3.1 Standard Power Supply; 450W 12V-2x6 Connector Included; Full Modular; 90mm FDB Fan; PS-STP-0850FNFAPU-1; 7 Year Warranty is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
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