---
product_id: 546466894
title: "Vertex GX-850-850W - 80+ Gold - ATX 3.0 & PCIe 5.0 Ready - Fully Modular - Premium Japanese Capacitors - 12 Year Warranty - Nvidia RTX 40/50 & AMD GPU Compatible"
brand: "seasonic"
price: "$897"
currency: NZD
in_stock: true
reviews_count: 13
category: "Seasonic"
url: https://www.desertcart.nz/products/546466894-vertex-gx-850-850w-80-gold-atx-3-0-pcie
store_origin: NZ
region: New Zealand
---

# 850W peak power output Fully modular cables for clean builds 12-year industry-leading warranty Vertex GX-850-850W - 80+ Gold - ATX 3.0 & PCIe 5.0 Ready - Fully Modular - Premium Japanese Capacitors - 12 Year Warranty - Nvidia RTX 40/50 & AMD GPU Compatible

**Brand:** seasonic
**Price:** $897
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your future with silence and style.

## Quick Answers

- **What is this?** Vertex GX-850-850W - 80+ Gold - ATX 3.0 & PCIe 5.0 Ready - Fully Modular - Premium Japanese Capacitors - 12 Year Warranty - Nvidia RTX 40/50 & AMD GPU Compatible by seasonic
- **How much does it cost?** $897 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/546466894-vertex-gx-850-850w-80-gold-atx-3-0-pcie)

## Best For

- seasonic enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Premium Japanese capacitors and gold-plated contacts ensure durability and peak efficiency.
- • **Next-Gen Ready:** ATX 3.0 & PCIe Gen 5 compatibility with 600W 12VHPWR cable for cutting-edge GPUs.
- • **Whisper-Quiet Cooling:** Advanced three-phase thermal control with fanless mode for silent operation under low loads.
- • **Powerhouse Performance:** 850W of stable, 80+ Gold certified power to future-proof your rig.
- • **Sleek Cable Management:** Fully modular design with individually sleeved cables for clutter-free, professional builds.

## Overview

The Seasonic Vertex GX-850 is a premium 850W power supply featuring 80+ Gold efficiency, fully modular cables, and next-gen ATX 3.0 & PCIe 5.0 readiness. Engineered with advanced thermal control and premium Japanese components, it delivers ultra-stable power with whisper-quiet operation. Backed by a 12-year warranty, it’s designed for professionals and gamers seeking reliable, future-proof performance and clean, elegant builds.

## Description

*ATX 3.0 and PCIe Gen 5 ready with 600W 12VHPWR Gen 5 cable. *It is a flexible solution that optimizes cable management and reduces clutter inside the computer case. *Improved load regulation reduces voltage variations to provide smooth and stable operations. *The lubrication inside the FDB greatly reduces friction, vibration and noise and increases the lifetime of the fan. *The industry's first three-phased advanced thermal control achieves an ideal balance between silence and cooling at all loads via three operational stages: Fanless Mode, Silent Mode, and Cooling Mode. The benefits of this system are: - The Fanless Mode provides unsurpassed silent performance. - Heat dissipation is optimized while noise output is kept at the minimum. - The lower number of fan rotations extends the life of the fan. If the PC case requires constant active cooling, there is a switch at the back of the power supply which allows users to turn off the hybrid mode and have the fun run at all times. *Enhanced +12 V current capability broadens utilization possibilities. *Superior dynamic response and greater system stability maximize the 12 V DC rail output. * Sea Sonic's engineers have implemented a new design feature, where instead of cables, the back panel and PCB (Printed Circuit Board) are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality. *Gold plating reduces current transmission resistance and increases efficiency. *Top-grade, Japan-sourced components extend product life and ensure operation stability under extreme conditions. *Our commitment to superior quality.

Review: Oozing Quality - My previous PSU was a Seasonic built XFX XTR 650W and powered my systems for the last 10 years without breaking a sweat. This year, I figured it was time to retire it given the mileage. Initially, I was torn between the Corsair rm850x and the Seasonic Vertex GX-850, but ended going with the latter owing to my previous experience with Seasonic. The unit is extremely well built and the cables are all individually sleeved which is a nice touch. In hybrid mode, the fan never spins at all despite my PC being under full load. I have a Ryzen 7 5700X paired with a RTX 4070 Super which barely sip power and 850W is more than plenty for my current and future needs. Even with the fan turned on the unit is absolutely silent. My unit came with the regular 12vhpwr cable, but I emailed Seasonic with my proof of purchase and they sent me the newer 12V-2x6 cable free of charge. Also, the unit comes with a 10 year warranty which gives me peace of mind. You can't go wrong with Seasonic.
Review: Power that is worth the investment! - I am by no means tech or PC savvy. My first gaming PC was built using iBUYPOWER and since then I have replaced parts and upgraded, on a plug-and-play basis. The PSU was the most recent. I had almost the same exact model in my PC, except it was a 650. I upgraded my GPU, installed a disc drive and faster RAM. My PC had also not been operating the best and everything I had read suggested I begin by replacing the PSU. I would like to say this replacement combined with updating the BIOS was my overall success (for those who might be getting BSOD or random black screen while the PC is fully powered up - related to possible Kernel-Power Event ID 41 - start with your PSU and BIOS!) The 850 will have more than enough power to handle any of those CPU/GPU/RAM or any other upgrades you are looking to put in. I have an RTX 2060 Super, and it handles it no problem (it also says it is rated for 3/4K series). Overall, installation is self-explanatory, and the process is plug and play. I recommend you give yourself plenty of time, space and patience and read over all the literature included in the box. The box comes with plenty of new cables which again, the instructions recommend be replaced. With the cables are also Velcro ties and zip ties to promote neater wire management. Overall, I recommend Seagate products. This is my second PSU (the first one was purchased in 2019, and I replaced it the end of 2024) - depending on how frequently you game and the load you put on your PC, this in general is the life expectancy for a PSU. Great value for the power you will get out of it and rest assured, you can trust Seagate. They make durable and reliable products!

## Features

- W128282364

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BQRDR7QM |
| Best Sellers Rank | #1,367 in Computer Power Supplies |
| Brand | Seasonic |
| Customer Reviews | 4.7 4.7 out of 5 stars (52) |
| Date First Available | February 25, 2023 |
| Item Dimensions LxWxH | 6.3 x 5.9 x 3.4 inches |
| Item Weight | 4.34 pounds |
| Item model number | VERTEX GX-850 |
| Manufacturer | SEASONIC |
| Product Dimensions | 6.3 x 5.9 x 3.4 inches |
| Series | VERTEX GX-850 |

## Product Details

- **Brand:** Seasonic
- **Compatible Devices:** Personal Computer
- **Connector Type:** atx,pcie
- **Cooling Method:** Air
- **Form Factor:** ATX
- **Item Weight:** 4.34 Pounds
- **Item dimensions L x W x H:** 6.3 x 5.9 x 3.4 inches
- **Model Name:** VERTEX GX-850
- **Output Wattage:** 850
- **Wattage:** 850 watts

## Images

![Vertex GX-850-850W - 80+ Gold - ATX 3.0 & PCIe 5.0 Ready - Fully Modular - Premium Japanese Capacitors - 12 Year Warranty - Nvidia RTX 40/50 & AMD GPU Compatible - Image 1](https://m.media-amazon.com/images/I/818mwob1rDL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Oozing Quality
*by D***W on June 19, 2025*

My previous PSU was a Seasonic built XFX XTR 650W and powered my systems for the last 10 years without breaking a sweat. This year, I figured it was time to retire it given the mileage. Initially, I was torn between the Corsair rm850x and the Seasonic Vertex GX-850, but ended going with the latter owing to my previous experience with Seasonic. The unit is extremely well built and the cables are all individually sleeved which is a nice touch. In hybrid mode, the fan never spins at all despite my PC being under full load. I have a Ryzen 7 5700X paired with a RTX 4070 Super which barely sip power and 850W is more than plenty for my current and future needs. Even with the fan turned on the unit is absolutely silent. My unit came with the regular 12vhpwr cable, but I emailed Seasonic with my proof of purchase and they sent me the newer 12V-2x6 cable free of charge. Also, the unit comes with a 10 year warranty which gives me peace of mind. You can't go wrong with Seasonic.

### ⭐⭐⭐⭐⭐ Power that is worth the investment!
*by J***E on June 8, 2025*

I am by no means tech or PC savvy. My first gaming PC was built using iBUYPOWER and since then I have replaced parts and upgraded, on a plug-and-play basis. The PSU was the most recent. I had almost the same exact model in my PC, except it was a 650. I upgraded my GPU, installed a disc drive and faster RAM. My PC had also not been operating the best and everything I had read suggested I begin by replacing the PSU. I would like to say this replacement combined with updating the BIOS was my overall success (for those who might be getting BSOD or random black screen while the PC is fully powered up - related to possible Kernel-Power Event ID 41 - start with your PSU and BIOS!) The 850 will have more than enough power to handle any of those CPU/GPU/RAM or any other upgrades you are looking to put in. I have an RTX 2060 Super, and it handles it no problem (it also says it is rated for 3/4K series). Overall, installation is self-explanatory, and the process is plug and play. I recommend you give yourself plenty of time, space and patience and read over all the literature included in the box. The box comes with plenty of new cables which again, the instructions recommend be replaced. With the cables are also Velcro ties and zip ties to promote neater wire management. Overall, I recommend Seagate products. This is my second PSU (the first one was purchased in 2019, and I replaced it the end of 2024) - depending on how frequently you game and the load you put on your PC, this in general is the life expectancy for a PSU. Great value for the power you will get out of it and rest assured, you can trust Seagate. They make durable and reliable products!

### ⭐⭐⭐⭐⭐ It’s a great power supply for your money.
*by C***R on March 19, 2025*

It’s great! Seasonic offers super reliable Power supplies with a 10 year warranty, so by the time that warranty runs out, you may have very well upgraded. It’s easy to install, and the modular interface makes it easy to get cables you don’t currently need out of the case. But while it isn’t the cheapest 850W PSU out there, it is definitely going to be one of the best. It also looks nice which isn’t a big deal for something you’ll never look at but it’s definitely a plus.

## Frequently Bought Together

- Seasonic Vertex GX-850-850W - 80+ Gold - ATX 3.0 & PCIe 5.0 Ready - Full-Modular - ATX Form Factor - Low Noise - 12 Year Warranty - Nvidia RTX 30/40 Super & AMD GPU Compatible
- Samsung 990 PRO SSD NVMe M.2 PCIe Gen4, M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P2T0B/AM
- AMD Ryzen 7 7800X3D 8-Core, 16-Thread Desktop Processor

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-03*