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Cooler Master GX III Gold Modular 850W ATX 3.0 Power Supply

A/AU Cable

PB Tech price
PB Tech price
$ 228 .17
 +GST
$ 250 .99
 inc GST

Out of stock

Limited Supply - only stock on hand available, when sold out we may not be able to source this product again.

Cooler Master GX III Gold Modular 850W ATX 3.0 Power Supply

A/AU Cable

Titanium efficiency at light loads!
  • Brand: Cooler Master
  • MPN: MPX-8503-AFAG-BAU
  • Part #: PSUCLM8850
  • UPC: 884102108709
1
PB Tech price
$ 228 .17 $ 250 .99
 +GST  inc GST


Delivery: Out of stock
Express Delivery Times
Metro - Within 2-3 working days
Rural - Within 3-5 working days

Standard Delivery Times
NSW, VIC, ACT, QLD - Within 3-7 working days
SA, WA, TAS, NT - Within 5-10 working days

View all shipping info
  • Brand: Cooler Master
  • MPN: MPX-8503-AFAG-BAU
  • Part #: PSUCLM8850
  • UPC: 884102108709

Max Output Power

850W 650W

PSU Form Factor

ATX

80 Plus Rating

Gold

Modular

Full

Colour

Black

16-Pin GPU Connector

1

PSU Length

160mm

PSU ATX Version

ATX 3.0

Product is out of stock. View similar products in-stock at PB Tech

What PB Tech customers are saying about this product...

See More Reviews
850W

"I bought one of these about a year ago. It hasn't let me dow ...view more"

IA
By: Ifera 03/01/25
Verified Owner

Features



GX III GOLD 850 - STRENGTH IN ELEGANCE

- Innovative, streamlined design
- ATX 3.0 support & a 90-degree 12VHPWR cable
- Optimized and silent thermal performance
- Titanium efficiency at light loads
- Fully modular cabling

 

STRENGTH IN ELEGANCE

Cooler Master presents the GX III Gold featuring exceptional efficiency, low noise output, and superb reliability.

 

INNOVATIVE, STREAMLINED DESIGN

The innovative design streamlines the overall aesthetic of the unit and greatly improves airflow.

 

ATX 3.0 SUPPORT & A DURABLE 90-DEGREE 12VHPWR CABLE

Includes ATX 3.0 support and a 90-degree 12+4pin (12VHPWR) PCIe 5.0 connector featuring higher electrical durability, improved safety, and capable of bringing up to 450W to your GPU.

*All performance stats confirmed in 25°C ambient temperature testing.

 

OPTIMIZED THERMAL PERFORMANCE

An anodic-coated heat sink keeps average temperatures 5? lower than a traditional heat sink for enhanced durability and a prolonged life span.

*All performance stats confirmed in 25°C ambient temperature testing.

 

CERTIFIED EFFICIENCY

80 Plus Gold and Cybenetics Platinum certifications indicate achievement of more than 90% efficiency at typical loads. This Gold certified unit can also achieve Titanium level efficiency under general light load usage in a 115V test.

 

SILENT FAN PERFORMANCE WITH A ZERO-RPM MODE

This unit has received a Cybenetics A- noise level certification and includes a smart thermal control mode that defaults to zero spin.

 

FULLY MODULAR CABLING

Modular cabling reduces clutter, increases airflow, and improves overall thermal performance.

Specifications

Model

MPX-8503-AFAG

ATX Version

ATX 12V Ver. 3.0

PFC

Active PFC

Input Voltage

100-240V

Input Current

10-5A

Input Frequency

50-60Hz

Dimensions (L x W x H)

160 x 150 x 86 mm

Fan Size

135mm

Fan Bearing

HDB

Fan Speed

1900 RPM

Efficiency

=90% @ Typical Load

80 PLUS Rating

80 PLUS Gold

ErP 2014 Lot 3

Yes

Operating Temperature

0-50°C

Power Good Signal

100 - 150 ms

Hold Up Time

>16ms

MTBF

>100,000 Hours

Protections

OPP, OVP, OTP, OCP, SCP, UVP, Surge and Inrush Protection

Regulatory

cTUVus, TUV, CE, FCC, BSMI, CCC, EAC, RCM, UKCA, RoHS2.0 / BIS, KC (based on region's request.)

ATX 24 Pin Connectors

1

EPS 4+4 Pin Connectors

1

EPS 8 Pin Connector

1

SATA Connectors

8

Peripheral 4 Pin Connectors

4

PCI-e 6+2 Pin Connectors

3

12VHPWR Connector

1

Series

GX Series

80 Plus

Gold

Modular

Full Modular

Wattage

850W

Manufacturer Part No:
MPX-8503-AFAG-BAU
Brand:
Product Type:
ATX 3.0 Power Supply
UPC
884102108709
Product Family:
GX III
Shipping Weight:
3.05 kg
PB Part No:
PSUCLM8850
Product Model:
Gold Modular
Warranty: 60 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.

Reviews

5 out of 5 Stars Based on 1 review
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
0
1 Stars
0

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Good power supply

Max Output Power: 850W

I bought one of these about a year ago. It hasn't let me down, so I got another one for a different machine.

* No coil whine.
* Fan only spins up if the PSU gets hot, so longer fan life. The unit is designed to run cool.
* All-Japanese parts, which is always a win.
* B-tier (though speculative) on the PSU tier list, which is about as good as you'll get for PSUs without other issues (such as coil whine, lack of stock, excessive pricing, etc.).
* Supports both previous gen and next gen boards and GPUs.
* Good amount of cables.

IA
By: Ifera 03/01/25
Verified Owner
0 out of 0 users found this review helpful
Did you find it helpful?

Delivery & Pick-up

Learn more about delivery time-frames over Christmas and the New Year period.

Shipping Costs

Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.

To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.

Shipping Security and Insurance

All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.

Delivery Estimates

The delivery time-frame (in days) for each product we sell is detailed on the individual product page just to the right of the main product image. From when you place your order, for DHL express delivery in-stock products typically arrive within 2-3 working days for metro areas and 3-5 working days for rural areas. For Standard delivery in-stock products typically arrive within 3-7 working days for NSW, VIC, ACT, QLD and SA deliveries and 5-10 working days for WA, TAS and NT.

Overseas Shipments

If you are located in New Zealand, you can order directly from our New Zealand site www.pbtech.co.nz. If you are from another country you can order from www.pbtech.com

Returns & Warranty

7 day right of exchange

If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.

To exchange a product, goods must be sealed / unopened, with packaging in original condition, and accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange.

If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase.

Please note, items purchased on finance cannot be exchanged for a gift card.

 

Hassle free warranty service

If your product develops a fault within the manufacturer warranty period, you need to fill out our request a return form.

If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.

 

Returning a product / making a warranty claim

To return a product to PB Tech, please complete our request a return form.

Or view our returns policy for more information.

Cooler Master GX III Gold Modular 850W ATX 3.0 Power Supply A/AU Cable

Titanium efficiency at light loads!
  • Brand: Cooler Master
  • MPN: MPX-8503-AFAG-BAU
  • Part #: PSUCLM8850
  • UPC:884102108709
$228.17 Excluding GST $250.99 Including GST

Date Created: 17:41, 07-09-2025
Product URL: https://www.pbtech.com/au/product/PSUCLM8850/Cooler-Master-GX-III-Gold-Modular-850W-ATX-30-Powe?is-review=1

Features



GX III GOLD 850 - STRENGTH IN ELEGANCE

- Innovative, streamlined design
- ATX 3.0 support & a 90-degree 12VHPWR cable
- Optimized and silent thermal performance
- Titanium efficiency at light loads
- Fully modular cabling

 

STRENGTH IN ELEGANCE

Cooler Master presents the GX III Gold featuring exceptional efficiency, low noise output, and superb reliability.

 

INNOVATIVE, STREAMLINED DESIGN

The innovative design streamlines the overall aesthetic of the unit and greatly improves airflow.

 

ATX 3.0 SUPPORT & A DURABLE 90-DEGREE 12VHPWR CABLE

Includes ATX 3.0 support and a 90-degree 12+4pin (12VHPWR) PCIe 5.0 connector featuring higher electrical durability, improved safety, and capable of bringing up to 450W to your GPU.

*All performance stats confirmed in 25°C ambient temperature testing.

 

OPTIMIZED THERMAL PERFORMANCE

An anodic-coated heat sink keeps average temperatures 5? lower than a traditional heat sink for enhanced durability and a prolonged life span.

*All performance stats confirmed in 25°C ambient temperature testing.

 

CERTIFIED EFFICIENCY

80 Plus Gold and Cybenetics Platinum certifications indicate achievement of more than 90% efficiency at typical loads. This Gold certified unit can also achieve Titanium level efficiency under general light load usage in a 115V test.

 

SILENT FAN PERFORMANCE WITH A ZERO-RPM MODE

This unit has received a Cybenetics A- noise level certification and includes a smart thermal control mode that defaults to zero spin.

 

FULLY MODULAR CABLING

Modular cabling reduces clutter, increases airflow, and improves overall thermal performance.

Specifications

Model

MPX-8503-AFAG

ATX Version

ATX 12V Ver. 3.0

PFC

Active PFC

Input Voltage

100-240V

Input Current

10-5A

Input Frequency

50-60Hz

Dimensions (L x W x H)

160 x 150 x 86 mm

Fan Size

135mm

Fan Bearing

HDB

Fan Speed

1900 RPM

Efficiency

=90% @ Typical Load

80 PLUS Rating

80 PLUS Gold

ErP 2014 Lot 3

Yes

Operating Temperature

0-50°C

Power Good Signal

100 - 150 ms

Hold Up Time

>16ms

MTBF

>100,000 Hours

Protections

OPP, OVP, OTP, OCP, SCP, UVP, Surge and Inrush Protection

Regulatory

cTUVus, TUV, CE, FCC, BSMI, CCC, EAC, RCM, UKCA, RoHS2.0 / BIS, KC (based on region's request.)

ATX 24 Pin Connectors

1

EPS 4+4 Pin Connectors

1

EPS 8 Pin Connector

1

SATA Connectors

8

Peripheral 4 Pin Connectors

4

PCI-e 6+2 Pin Connectors

3

12VHPWR Connector

1

Series

GX Series

80 Plus

Gold

Modular

Full Modular

Wattage

850W

Date Created: 17:41, 07-09-2025
Product URL: https://www.pbtech.com/au/product/PSUCLM8850/Cooler-Master-GX-III-Gold-Modular-850W-ATX-30-Powe?is-review=1