Segotep
Segotep GM850 850W Power Supply, 80 Plus Gold Certified, PCIe 5.1 & ATX 3.1
Bottom line: The Segotep GM850 850W Power Supply ($77.99 on Amazon as of 2026-10-06): Native 12VHPWR cable delivers up to 600W to PCIe 5.1 graphics cards; main trade-off: white cables may clash with all-black build themes.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Native 12VHPWR cable delivers up to 600W to PCIe 5.1 graphics cards
- ✓ ATX 3.1 spec handles 200% total and 300% GPU power excursions
- ✓ 80 Plus Gold certified for lower energy draw and less waste heat
- ✓ Fully modular flat cables simplify routing and improve case airflow
Cons
- ✗ White cables may clash with all-black build themes
- ✗ Less brand recognition than mainstream PSU makers
- ✗ Warranty length and fan specs not stated in the listing
- ✗ 850W may be tight for flagship GPUs paired with high-draw CPUs
Manufacturer description
The Segotep GM850 is an 850W power supply built for current GPUs. It is ATX 3.1 and PCIe 5.1 compliant, so it can handle power excursions of up to 200% of total rated output and 300% on the GPU rail. Those are the sudden transient spikes that can trip older PSUs when a high-end graphics card ramps up under load. A native 12VHPWR cable delivers up to 600W straight to a PCIe 5.1 graphics card, so you don't need a bulky adapter in your case. The GM850 is also 80 Plus Gold certified, which means it wastes less power as heat than lower-tier units. The fully modular design uses flat white cables…
SpecPicks Verdict
SpecPicks scored Segotep GM850 850W Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. Segotep's power supplies & cables lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies & cables 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Does the Segotep GM850 work with RTX 50-series and other 12VHPWR graphics cards?
Yes. The GM850 includes a native 12VHPWR cable rated for up to 600W and is PCIe 5.1 compliant, so it connects directly to 12VHPWR-equipped cards without an adapter.
Is the Segotep GM850 ATX 3.1 compliant?
Yes. It meets the ATX 3.1 spec and can handle power excursions of up to 200% of total output and up to 300% on the GPU.
Is the Segotep GM850 fully modular?
Yes. It is fully modular with flat white cables, so you connect only the cables your build needs. This makes cable management easier and helps airflow.
How efficient is the Segotep GM850 power supply?
It is 80 Plus Gold certified, which means lower energy consumption and less waste heat than Bronze-rated or uncertified units at the same load.
What warranty comes with the Segotep GM850?
The product details don't list the warranty terms. Check the current Amazon listing or contact Segotep for coverage length and conditions before you buy.
Key Features
- ATX 3.1 & PCIe 5.1 Ready: The PSU can hold up to 200% total power excursion & 300% GPU power excursion
- 80 Plus Gold Certified: The 80 PLUS Gold certification promises higher efficiency & lower energy consumption
- Fully Modular: Full module with flat white cables, improves airflow & strengthens cable management
- Native 12VHPWR Cable: It can generate up to 600W of power to PCIe 5.1 graphics cards
- Stable +12V Output: DC-DC structure, Full Bridge LLC resonance assist, 12V synchronous rectification provides a stable & safe output
Full Specifications
| Brand | Segotep |
|---|---|
| Wattage | 850 watts |
| Fan Size | 14 centimeters |
| Model Name | gm850 |
| Unit Count | 1 Count |
| Form Factor | ATX |
| Model Number | 850W |
| Fully Modular | Full module with flat white cables, improves airflow & strengthens cable management |
| Connector Type | ATX 3.1, PCI Express 5.1 |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 850 |
| Item Dimensions | 5.91 x 5.51 x 3.35 inches |
| Mfr Part Number | 850W |
| Number of Items | 1 |
| Compatible Devices | Personal Computer |
| Stable +12V Output | DC-DC structure, Full Bridge LLC resonance assist, 12V synchronous rectification provides a stable & safe output |
| Power Supply Design | Full Modular |
| Native 12VHPWR Cable | It can generate up to 600W of power to PCIe 5.1 graphics cards |
| Warranty Description | 5 years |
Ready to buy?
Segotep GM850 850W Power Supply, 80 Plus Gold Certified, PCIe 5.1 & ATX 3.1 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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