---
product_id: 239807773
title: "GM850 850W Power Supply, 80 Plus Gold Certified, PCIe 5.1 & ATX 3.1 | Full Modular Gaming PSU for NVIDIA RTX 20/30/40/50 Series and AMD Graphics Cards"
brand: "segotep"
price: "R4213"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Segotep"
url: https://www.desertcart.co.za/products/239807773-gm850-850w-power-supply-80-plus-gold-certified-pcie-5
store_origin: ZA
region: South Africa
---

# 850W peak power output 80 Plus Gold efficiency PCIe 5.1 & ATX 3.1 ready GM850 850W Power Supply, 80 Plus Gold Certified, PCIe 5.1 & ATX 3.1 | Full Modular Gaming PSU for NVIDIA RTX 20/30/40/50 Series and AMD Graphics Cards

**Brand:** segotep
**Price:** R4213
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your ambition with Segotep GM850 — where efficiency meets future-ready tech!

## Quick Answers

- **What is this?** GM850 850W Power Supply, 80 Plus Gold Certified, PCIe 5.1 & ATX 3.1 | Full Modular Gaming PSU for NVIDIA RTX 20/30/40/50 Series and AMD Graphics Cards by segotep
- **How much does it cost?** R4213 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/239807773-gm850-850w-power-supply-80-plus-gold-certified-pcie-5)

## Best For

- segotep enthusiasts

## Why This Product

- Trusted segotep brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rock-Solid Stability:** Advanced DC-DC and LLC resonance tech deliver ultra-stable +12V output for peak safety.
- • **Sleek Full Modularity:** Flat white cables enhance airflow and keep your setup clean and professional.
- • **Powerhouse Performance:** 850W of reliable, high-capacity power to fuel your ultimate build.
- • **Gold Standard Efficiency:** 80 Plus Gold certification means less energy waste and lower bills.
- • **Future-Proof Connectivity:** Native PCIe 5.1 & ATX 3.1 support for next-gen GPUs and motherboards.

## Overview

The Segotep GM850 is an 850W full modular power supply featuring 80 Plus Gold certification for superior energy efficiency. Designed with PCIe 5.1 and ATX 3.1 compatibility, it supports the latest GPUs and motherboards with native 12VHPWR cables delivering up to 600W. Its advanced DC-DC and LLC resonance technology ensure stable and safe power output, while flat white cables optimize airflow and cable management. Backed by a 5-year warranty, it’s a premium choice for professional-grade PC builds.

## Description

Buy Segotep GM850 850W Power Supply, 80 Plus Gold Certified, PCIe 5.1 & ATX 3.1 | Full Modular Gaming PSU for NVIDIA RTX 20/30/40/50 Series and AMD Graphics Cards: Internal Power Supplies - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Almost 1 year of use.(I will update if something happens.) - So far so good, bought it on Dec 27, 2025. No problems and no noise. Got a rx 9060xt. The graphics card is rated for 150/160 wats so that’s probably why. But yeah no problems. Gives enough power and the cables are easy to install. I only had trouble with the motherboard haha, it’s just difficult to remove the cables once they are plugged in.
Review: Quiet but smelly? - My computer was shutting down randomly a few months after buying a new graphics card. The PSU was 11 yrs old, so although it was 650w and the minimum suggestion from AMD, I didn't feel it was quite right. I also needed extension/splitter cables to fit the plugs on the new graphics card since the old PSU didn't have 16 pins cords... not a good look. This came with more plugs than I needed (hallelujah for modular designs), and fit my 6700XT perfectly. I used both of the 8pin cables and plugged them both into the 2 PCIE slots on the PSU, instead of using just one wire with the additional 8-pin attachment. (see attached). After giving up on my defective RAM sticks (again), I've since had no BSOD error, or random system crashes / freezes that lose all my hard work throughout the day. The crashes I faced before were almost certainly the fault of my old, failing / struggling PSU, but if I run into them again I'll update this review. Even if I face those issues again, it wouldn't be the fault of this product, but I did want to make note of it because system crashes can be linked to failing PSU's and people need to be assured of that when considering applicable remedies; for me this was a purchase out of necessity, not comfort / preference. The PSU itself is also ultra quiet. For the first couple days, I smelled a factory-like scent. It was a little strong, but it has been a few days now and has gone away. I always thought my graphics card / HDD was making noise--it turns out it was my old PSU, because now I hear ALMOST NOTHING from my tower, and certainly nothing from the PSU. This is a great, great buy.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08F1NFSG4 |
| Best Sellers Rank | #156 in Computer Power Supplies |
| Brand | Segotep |
| Compatible Devices | Personal Computer |
| Connector Type | ATX 3.1, PCI Express 5.1 |
| Connector Type Used on Cable | ATX 3.1, PCI Express 5.1 |
| Cooling Method | Air |
| Customer Reviews | 4.5 out of 5 stars 787 Reviews |
| Fan Size | 14 centimeters |
| Form Factor | ATX |
| Item Dimensions | 5.91 x 5.51 x 3.35 inches |
| Item Weight | 5.3 pounds |
| Manufacturer | Segotep |
| Maximum Input Voltage | 240 volts_of_alternating_current |
| Mfr Part Number | 850W |
| Minimum Input Voltage | 115 volts_of_alternating_current |
| Model Name | gm850 |
| Model Number | 850W |
| Number of Fans | 1 |
| Number of Items | 1 |
| Output Wattage | 850 |
| Power Supply Design | Full Modular |
| System Bus Connector Type | ATX |
| UPC | 609015786574 |
| Unit Count | 1 Count |
| Warranty Description | 5 years |
| Wattage | 850 watts |

## Product Details

- **Brand:** Segotep
- **Compatible Devices:** Personal Computer
- **Connector Type:** ATX 3.1, PCI Express 5.1
- **Cooling Method:** Air
- **Form Factor:** ATX
- **Item Weight:** 5.3 pounds
- **Item dimensions L x W x H:** 5.91 x 5.51 x 3.35 inches
- **Model Name:** gm850
- **Output Wattage:** 850
- **Wattage:** 850 watts

## Images

![GM850 850W Power Supply, 80 Plus Gold Certified, PCIe 5.1 & ATX 3.1 | Full Modular Gaming PSU for NVIDIA RTX 20/30/40/50 Series and AMD Graphics Cards - Image 1](https://m.media-amazon.com/images/I/71xKhDGjUSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Almost 1 year of use.(I will update if something happens.)
*by R***T on August 16, 2026*

So far so good, bought it on Dec 27, 2025. No problems and no noise. Got a rx 9060xt. The graphics card is rated for 150/160 wats so that’s probably why. But yeah no problems. Gives enough power and the cables are easy to install. I only had trouble with the motherboard haha, it’s just difficult to remove the cables once they are plugged in.

### ⭐⭐⭐⭐⭐ Quiet but smelly?
*by A***L on August 24, 2023*

My computer was shutting down randomly a few months after buying a new graphics card. The PSU was 11 yrs old, so although it was 650w and the minimum suggestion from AMD, I didn't feel it was quite right. I also needed extension/splitter cables to fit the plugs on the new graphics card since the old PSU didn't have 16 pins cords... not a good look. This came with more plugs than I needed (hallelujah for modular designs), and fit my 6700XT perfectly. I used both of the 8pin cables and plugged them both into the 2 PCIE slots on the PSU, instead of using just one wire with the additional 8-pin attachment. (see attached). After giving up on my defective RAM sticks (again), I've since had no BSOD error, or random system crashes / freezes that lose all my hard work throughout the day. The crashes I faced before were almost certainly the fault of my old, failing / struggling PSU, but if I run into them again I'll update this review. Even if I face those issues again, it wouldn't be the fault of this product, but I did want to make note of it because system crashes can be linked to failing PSU's and people need to be assured of that when considering applicable remedies; for me this was a purchase out of necessity, not comfort / preference. The PSU itself is also ultra quiet. For the first couple days, I smelled a factory-like scent. It was a little strong, but it has been a few days now and has gone away. I always thought my graphics card / HDD was making noise--it turns out it was my old PSU, because now I hear ALMOST NOTHING from my tower, and certainly nothing from the PSU. This is a great, great buy.

### ⭐⭐⭐⭐⭐ All you need
*by M***E on March 13, 2026*

Upgraded pc from 2070super with a 600watt psu and was getting a 5070 . Needed a psu with 12vhpwr native connectors and this had it . Very happy with my purchase . Now I’m running the 5070 and ryzen 5 7600x and both with a slight OC . No issues yet , about 2 months in . No fan noise . Very high quality cables . Everything connected properly and it has up to date features . Looks good too .

## Frequently Bought Together

- Segotep GM850 Power Supply 850W, PCIe 5.1 & ATX 3.1 Full Modular 80 Plus Gold Certified Gaming PSU for NVIDIA RTX 20/30/40/50 Series and AMD Graphics Cards
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- ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high Thermal Conductivity, Long Durability, Safe Application, Non-Conductive

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**Shop now:** [https://www.desertcart.co.za/products/239807773-gm850-850w-power-supply-80-plus-gold-certified-pcie-5](https://www.desertcart.co.za/products/239807773-gm850-850w-power-supply-80-plus-gold-certified-pcie-5)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-01*