Seasonic
FOCUS V4 GX-850-850W - 80+ Gold - Full-Modular - ATX Form Factor - Premium Japanese Capacitor - 10 Year Warranty - Nvidia RTX 30/40 Super & AMD GPU Compatible (Ref. SRP-FGX851-A5A32SF)
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
Bottom line: The FOCUS V4 GX-850-850W - 80+ Gold - Full-Modular - ATX Form Factor - Premium Japanese Capacitor - 10 Year Warranty - Nvidia RTX 30/40 Super & AMD GPU Compatible (Ref. SRP-FGX851-A5A32SF) is a solid pick with broad community endorsement in the power supplies category, priced around $139.99, rated 4.4★ across 11 verified Amazon reviews. A solid choice — worth comparing against one or two close alternatives first.
High Efficiency, 80 PLUS® Gold Certified ATX 3 and 16-Pin PCIe Gen 5 Cable (12V-2x6) OptiSink Design Fully Modular Cabling Design Compact Size (140 mm) 135 mm Fluid Dynamic Bearing (FDB) Fan Seasonic Hybrid Silent Fan Control Highly Reliable Japanese 105 °C Aluminum Electrolytic Capacitors Tight Voltage Regulation (12 V, 5 V and 3.3 V) [± 3 %] Ample +12 V Output DC to DC Converter Design Cable-free Connection Design Gold-Plated High Current Terminals (MB, CPU and PCIe PVC Embossed Cable 10 Years Warranty
SpecPicks Verdict
SpecPicks classifies SEASONIC FOCUS V4 GX-850-850W - 80+ Gold - Full-Modular - ATX Form… as a solid pick with broad community endorsement in the power supplies category, based on 11 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Seasonic's positioning sits comfortably above the category median. 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 4.4★ customer rating
- ✓ Fully Modular Cabling Design
- ✓ Backed by Seasonic's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ 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
- Fully Modular Cabling Design
- Compact Size (140 mm)
- 135 mm Fluid Dynamic Bearing (FDB) Fan
- Seasonic Hybrid Silent Fan Control
- Highly Reliable Japanese 105 °C Aluminum Electrolytic Capacitors
Full Specifications
| Brand | Seasonic |
|---|---|
| Wattage | 850 watts |
| Model Name | FOCUS V4 GX-850 |
| Unit Count | 9.6651 Ounce |
| Form Factor | ATX |
| Model Number | FOCUS V4 GX-850 |
| Built-In Media | Power Supply |
| Connector Type | ATX |
| Cooling Method | Air |
| Item Type Name | Power Supply |
| Number of Fans | 1 |
| Output Wattage | 850 Watts |
| Item Dimensions | 5.5 x 5.9 x 3.4 inches |
| Mfr Part Number | 394362A4 |
Ready to buy?
SEASONIC FOCUS V4 GX-850-850W - 80+ Gold - Full-Modular - ATX Form Factor - Premium Japanese Capacitor - 10 Year Warranty - Nvidia RTX 30/40 Super & AMD GPU Compatible (Ref. SRP-FGX851-A5A32SF) 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 2026-05-26. Price and availability subject to change.
Related Power Supplies
