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Cooler Master GX III MPX-8503-AFAG

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Cooler Master GX III MPX-8503-AFAG
2023GX Seriessemi-passive cooling80+ Gold10 year warranty
650 W750 W850 W
Main
Power850 W
Form factorATX
Specs
PFCactive
Efficiency90 %
Cooling systemsemi-passive (fan off)
Fan size135 mm / 1900 rpm /
Fan bearinghydrodynamic
Certification80+ Gold
Cybenetics EfficiencyPlatinum
Cybenetics NoiseA -
ATX12V version3
Power connectors
MB/CPU power supply24+8+8(4+4) pin
SATA8
MOLEX4
PCI-E 8pin (6+2)3
PCI-E 16pin1
Cable systemmodular
Cable length
MB610 mm
CPU600 mm
SATA500 mm / 620/740/860 /
MOLEX500 mm / 620/740/860 /
PCI-E550 mm
Max. power
+3.3V20 А
+5V20 А
+12V170.8 А
-12V0.3 А
+5Vsb3 А
+12V850 W
+3.3V +5V120 W
-12V3.6 W
+5Vsb15 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOTP, OCP, UVP
Manufacturer's warranty10 years
Dimensions (HxWxD)86x150x160 mm
Weight2.61 kg
Official Websitecoolermaster.com
Added to E-Catalognovember 2023
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Cooler Master 2025 - new arrivals, bestsellers, and the most relevant models Cooler Master.
How to choose a power supply for a PCBasics of choosing a reliable and balanced power supply for your home, office and gaming computer

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Cooler Master GX III Gold 850 PC Power Supply - 850W 80 Plus Gold Cybenetics Platinum ATX 30 Support High Temperature Thresh

GOLD & PLATINUM - Rated 80 PLUS Gold & Cybenetics Platinum. Efficiency of over 90% under typical load, ideal for PC systems w... moreith high power requirements. Achieves Titanium level efficiency at low load (115V test) ATX 3.0 COMPATIBLE & 90° 12VHPWR CABLE - Fully ATX 3.0 compliant and PCIe 5.0 12VHPWR (300W) connectors. Includes a 90-degree 12VHPWR cable for superior durability and electrical safety HIGH TEMPERATURE RESILIENCE - High temperature threshold 50°C ideal for power-hungry GPUs. Anodic coated heatsink for an average temperature 5°C lower than traditional heatsinks & improved durability SILENT FAN, 0-RPM MODE - Cybenetics A-noise level certification. 135mm hydrodynamic bearing (HDB) fan off below 40% load. Honeycomb design top hood improves airflow POWERFUL & RELIABLE - The GX III Gold 850 features a wide range of modular cables (ATX 24 pins x 1, EPS 4+4 pins x 1, EPS 8 pins x 1, SATA x 8, 4-pin x 4 peripheral, PCI-e 6+2 x3 and PCIe 5.0 12VHPWR x 1). Includes warranty of 10 Years
Amazon.co.uk
Delivery: to United Kingdom
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£170.16
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Cooler Master GX III Gold 850 power supply unit 850 W 24-pin ATX ATX B MPX-8503-AFAG-BUK

CoolingFan diameter13.5 cmNumber of fans1 fan(s)Fan speed0 - 1900 RPMCooling typeActiveDesign80 PLUS certification80 PLUS Gol... moredCertificationErP 2014 Lot 3Product colourBlackFan diameter13.5 cmNumber of fans1 fan(s)Fan speed0 - 1900 RPMCooling typeActivePowerTotal power850 WPower Good signal delay range100 - 150 msAC input voltage100 - 240 VAC input frequency50/60 HzInput current5 - 10 APower Factor Correction (PFC) typeActiveCombined power (+3.3V)120 WCombined power (+12V)849.6 WCombined power (+
itsupplies.uk
Delivery: to United Kingdom
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£124.28
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Cooler Master GX III 850W PSU 80 PLUS Gold Fully Modular ATX 3.0 Power Supply - MPX-8503-AFAG-BUK MPX-8503-AFAG-BUK

Cooler Master presents the GX III Gold featuring exceptional efficiency, low noise output, and superb reliability.
Awd-it.co.uk
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£127.14
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Cooler Master GX III 850 Watt Fully Modular PCIe 5 80+ Gold PSU/Power

Scan.co.uk
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£104.99
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Cooler Master GX III Gold 850 power supply unit 850 W 24-pin ATX ATX Black MPX-8503-AFAG-BUK

STRENGTH IN ELEGANCE Cooler Master presents the GX III Gold featuring exceptional efficiency low noise output and superb rel... moreiability. 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. 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. 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.
Quzo.co.uk
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£166.86
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Cooler Master GX III Gold 850 power supply unit 850 W 24-pin ATX ATX B MPX-8503-AFAG-BUK

Cooler Master GX III Gold 850 power supply unit 850 W 24-pin ATX ATX Black
ComputersDeal.com
Delivery: in United Kingdom
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£149.14
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Cooler Master MPX-8503-AFAG-BEU

Cooler Master introduces the GX III Gold PC power supply, which offers exceptional efficiency, low noise and high reliability... more.The innovative design optimizes the aesthetics of the power supply and significantly improves airflow.It offers ATX 3.0 support and a 90-degree 12+4-pin PCIe 5.0 connector (12VHPWR) with increased electrical durability, lower temperatures, and improved security.An anodic coated heat sink keeps average temperatures approximately 5°C lower than a conventional heat sink, providing greater durability and longer life.80 Plus Gold and Cybenetics Platinum certifications demonstrate over 90% efficiency under typical loads.This Gold certified power supply can also achieve titanium level efficiency under general light load in a 115V test.This device has been certified by Cybenetics with an A- noise level and has an intelligent thermal control mode that is set to zero turn by default.Modular wiring reduces clutter, increases airflow and improves overall thermal performance.Specifications:-Product color:Black.-Total power:850 W.-AC input voltage:100- 240 V.-Use with:PC/server.-Power supply form factor (PSU):ATX.-80 PLUS Certification:80 PLUS Gold.-ATX version:3.0.-Noise level:Low noise.
Tradeinn.com
Delivery: in United Kingdom
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£142.99
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Series Cooler Master GX SeriesCompare using chart →
Cooler Master GX II MPX-7503-AFAG-2
from £99.16 
750 W, 24+8+8(4+4) pin, 4 х 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Cooler Master G Gold V2 ATX 3.1 MPE-7502-ACAAG
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Cooler Master GX III MPX-7503-AFAG
from £99.98 
750 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Cooler Master GX II MPX-8503-AFAG-2
from £80.99 
850 W, 24+8+8(4+4) pin, 4 х 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Cooler Master GX III MPX-6503-AFAG
from £81.53 
650 W, 24+8+8(4+4) pin, 2 х 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Cooler Master GX III MPX-8503-AFAG
from £104.99 
850 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years

Cooler Master GX III configurations

Price for Cooler Master GX III
Cooler Master GX III MPX-6503-AFAGfrom £81.533 offers
Cooler Master GX III MPX-7503-AFAGfrom £99.985 offers
Cooler Master GX III MPX-8503-AFAGfrom £104.997 offers
Video reviews
The GX III - One Sleek ATX 3.0 Power Supply!
12 October 20234 090 view
Cooler Master GX III 1250W ATX v3.0 PSU Review
24 January 20241 415 view
GX III Gold – Strength in Elegance
19 June 20231 897 view
GX III Gold | Strength in Elegance
20 July 20231 376 view
GX III Gold | Strength in Elegance
28 September 20231 768 view
GX III Gold | Strength in Elegance
20 July 20234 848 view
Cooler Master GX III Gold 850W PSU Review: Power and Silence Unleashed!
2 January 20244 047 view
Gaming PC Build | DeepCool MYSTIQUE 360 | Cooler Master GX III Gold 850 | MSI Expert 4070 Ti Super
6 April 202415 919 view
Unboxing #asmr Cooler Master GX III 650 Gold & Modular #shorts
24 June 20241 848 view
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