GAMEMAX GX-850 Pro Modular 80 Plus Gold ATX3.0 PCIe 5.0 PSU With 135mm FDB Fan

Product ID: 421106252079 This is the unique Computey listing identifier for this product. EAN: 6931858767521 This is the European Article Number (EAN) for this product.
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Computey Outlet Seller ID: 59613811 • Company This seller is registered on Computey as a Company.
5.0 (4 reviews)
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£93.90
In Stock • Installments available with Klarna at checkout
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Power Supply Specifications

These are the product's key specifications set by the seller.

Product specifications are subject to change at the hands of the seller at any time, and may be inaccurate.

  • Brand: Gamemax
  • Condition: New

Product description

View GAMEMAX GX-850 Pro Modular 80 Plus Gold ATX3.0 PCIe 5.0 PSU With 135mm FDB Fan specs & used value · component catalogue

The GX-850 Pro partners high-end cooling together with premium components to provide an incredibly silent, top performing product perfect for primary gamers.

This intelligent fully modular unit features an instinctive Axial-tech fan design to make cooling more productive and guarantees a flawless performance. On the inside only the best components are used, and a full suite of top tier circuit protections ensures that the power that is delivered to your system is safe and reliable in any environment are used.

GameMax have created the ultimate gaming Power supply, the GX-850 Pro is the best choice for high-end gaming PCs and Esports environments.

Key Features

80 PLUS Gold Certification - Trusted with an 80 PLUS Gold certification, this powerful power supply has a high energy efficiency conversation of over 90 percent. The Gold efficiency results in less heat, a quieter operation and increased reliability.

Axial-Tech - A 135mm customised Fluid Dynamic Bearing Fan with Axial-Technology features FOB high-precision fan bearings for a quieter and longer life span and a spiral fan design guarantees greater airflow and calculated to keep noise levels down.

Intelligent Temperature Control Technology - The 135mm Fluid Dynamic Bearing fan starts when the power consumption is higher than 20 percent and stops when it is lower for a more efficient cooling operation and lower energy costs.

Japanese 105 Degree Celsius Capacitors - Delivering a top performance and the reliability to match with the use of high-quality Japanese 105 Degree Celsius capacitors. Other premium components help deliver continuous and stable power, providing the greatest durability and highest stability.

PCIE 5.0 Ready - The GX-850 Pro includes a 12VHPWR 16-Pin connector offering a powerful and stable performance allowing the PSU to run next-generation GPUs, RTX 3090 TI/PCIE 5.0 GPUs. Max. Power output up to 600W.

Modular Cable Configuration - A Modular cable management design lets you use only the cables you need. Improved airflow and save space and create a cleaner-looking build with the low-profile flat white cables.

Hardware Protection - A full line up top tier circuit protections keeps your build running strong and your hardware safe - OVP (Over Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), UVP (Under Voltage Protection) & OTP (Over Temperature Protection).

Specification

Form Factor:
ATX

Series:
GameMax GX Pro

Modular:
Fully Modular

Compatibility:
ATX 3.0

Wattage:
850 W

Connectors:
1 x 20+4 Pin Main
2 x 4+4 Pin 12V
6 x SATA
3 x 4-Pin Molex
4 x 6+2 Pin PCI-e
1x 12+4 Pin 12VHPWR

AC Input:
110-240 VAC

PFC:
Active PFC

Fan Type:
135mm Axial-Tech Fan

Fan Bearing:
Fluid / Hydraulic Bearing

Noise:
<25dBa

80+ Certification:
80+ Gold

Efficiency:
90%

MTBF:
"100,000 Hours"

Protection:
OPP / OVP / UVP / OCP / SCP / OTP

Package Contents:
Power Supply
Modular Cables
Manual
Modular Cable Bag

NOTE: Power lead not included

Weight/Dimensions:
1.47 kg
(WxHxD) 150 x 86 x 160 mm

Package Weight:
2.5200 kg

Warranty:
2 Years

Product specifications

Listing Details

  • Listing ID: 421106252079
  • EAN: 6931858767521
  • MPN: PSUGMXGX850PRO
  • Brand: Gamemax
  • Condition: New

Technicals

  • Modularity: Not provided
  • Efficiency: Not provided
  • Wattage: Not provided
  • Color: Not provided
  • Fanless: Not provided

Connectors

  • ATX 4-pin connectors: Not provided
  • EPS 8-pin connectors: Not provided
  • PCIe 16-pin connectors: Not provided
  • PCIe 12-pin connectors: Not provided
  • PCIe 8-pin connectors: Not provided
  • PCIe 6+2-pin connectors: Not provided
  • PCIe 6-pin connectors: Not provided
  • SATA connectors: Not provided
  • Molex 4-pin connectors: Not provided

Delivery options for this product

DPD - ShipStation Carrier Services

DPD - ShipStation Carrier Services - DPD Next Day - Drop Off

FREE - Delivered in 1 day

Rate last updated: 2026-09-02

Shipping rates are subject to change at time of checkout based on delivery address and package weight - but this is unlikely.

Seller Policies

Statutory rights

Your statutory rights under the Consumer Rights Act 2015 and the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 are not affected.

For most stock and standard catalogue items bought at a distance, you have a 14-day cooling-off period from the day you receive the goods. That right is change of mind for distance sales and the seller cannot turn it off.

On an accepted cooling-off cancellation, standard outbound delivery is refunded. Return postage is as stated in this policy.

Refund and dispute reasons

  • Not arrived / cannot prove delivery: Always accepted If the item does not arrive, or delivery cannot be proved, this is handled under Computey's dispute policy. It is not a seller toggle.
  • Not as described, including worse than the Condition Grade: Always accepted Not as described is always accepted. This is a platform rule and a Consumer Rights Act 2015 right.
  • Wrong item: Always accepted If you receive a different item from the listing, that is always accepted.
  • Faulty / dead on arrival when listed as working: Always accepted Faulty or dead-on-arrival when listed as working: always accepted.
  • Transit damage with valid dispatch evidence: Always a dispute Transit damage with valid dispatch evidence is always treated as a dispute. Liability follows Computey's dispute policy, not a seller toggle.
  • Incompatibility with an express listing representation: Always accepted If the listing expressly claimed compatibility and the item does not match that claim, the claim is accepted.
  • Incompatibility with no listing representation: Not accepted If the listing did not claim compatibility, incompatibility is the buyer's risk and is not accepted as a return reason.
  • Change of mind: Accepted within 14 days (cooling-off) Change of mind: accepted within 14 days of delivery for stock and standard catalogue items. You pay return postage on accepted change-of-mind or cooling-off returns, unless the seller agrees otherwise. This is disclosed before you buy.
  • Custom build or custom service cancellation: Accepted until dispatch Custom builds and custom services: you may cancel until the seller dispatches the order. After dispatch, change of mind does not apply to the custom work.

Dispatch times

Stock and standard catalogue items are dispatched within 1 business day.

  • Stock dispatch: Stock and standard catalogue items are dispatched within 1 business day.
  • Custom lead time: 7 days

Custom builds and custom services

Custom builds and custom services have a lead time of 7 days.

You may cancel a custom build or custom service until the seller dispatches the order. After dispatch, change of mind does not apply to the custom work. You still have rights if the item is faulty or not as described.

A PC assembled from a standard parts range is usually still a distance sale, not a bespoke exemption. Marking a listing as a custom build does not remove statutory rights.

Seller warranty

The seller does not offer an additional warranty. Your statutory rights are unaffected.

Shipping terms

  • Free shipping threshold: No store-wide free shipping threshold
  • Shipping insurance: Carrier insurance only
  • International shipping: UK only
  • Refund method: Refunds are made to the original payment method through Computey.

Computey publishes this policy. Statutory rights and dispute reasons are platform rules. The seller sets the parameters shown above.

Seller Reviews.

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Order fulfilled successfully. Buyer received all products as expected with no issues reported to Computey.

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Order fulfilled successfully. All products were received by the buyer with no issues reported.

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