CoolerMaster GX III - 1250W Power Supply Unit, Gold 80+, Fully Modular

Power your system with confidence using CoolerMaster's GX III 1250W PSU.
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CoolerMaster GX III - 1250W Power Supply Unit

Strength In Elegance
Experience unparalleled reliability and efficiency with the CoolerMaster GX III, designed for power-hungry builds with a touch of elegance. This unit combines premium performance with a sleek aesthetic that enhances any system.

Key Features

  • Innovative, Streamlined Design: The GX III features a modern design that not only looks great but also optimizes airflow for superior cooling performance.
  • ATX 3.0 & 12VHPWR Support: Equipped with cutting-edge ATX 3.0 compatibility and a 90-degree 12+4pin (12VHPWR) PCIe 5.0 connector, this power supply ensures high electrical durability and improved safety, capable of delivering up to 450W directly to your GPU.
  • Optimized Thermal Performance: The anodic-coated heat sink reduces average temperatures by 5℃ compared to traditional models, enhancing durability and extending the lifespan of your components.
  • 80 Plus Gold & Cybenetics Platinum Certifications: With more than 90% efficiency at typical loads, this power supply stands out with its Gold certification while achieving Titan-level efficiency under light load conditions.
  • Silent Fan Operation: Featuring a Cybenetics A- noise level rating, the GX III includes a smart thermal control mode that defaults to zero RPM, ensuring whisper-quiet operation during low loads.
  • Fully Modular Cabling: Say goodbye to cable clutter! The fully modular cabling system not only enhances airflow but also simplifies cable management for an organized interior.

Why Choose CoolerMaster GX III?

The CoolerMaster GX III - 1250W Power Supply Unit is ideal for gamers, content creators, and anyone who demands high performance and reliability from their systems. Whether you’re building a powerful workstation or a gaming rig, this PSU is your premium choice for efficiency and stability.

Main
Brand
Cooler Master
Warranty
10 Years Warranty
Product code
MPX-C503-AFAG
Certificates
Certification
cTUVus, TUV, CE, FCC, BSMI, CCC, EAC, RCM, UKCA, RoHS2.0 / BIS, KC (Based on region's requests.)
Design
Fan speed
0, 350~1900 RPM
Form factor
ATX
Protection features
OPP/ OVP/ OTP/ OCP/ SCP/ UVP/ Surge & Inrush Protection
Features
Hold up time
≥ 16ms
Operational conditions
Operating temperature (T-T)
0 - 50 °C
Performance
80 PLUS certification
80 PLUS Gold
ATX version
ATX 12V Ver. 3.0
Fan bearing technology
HDB
Mean time between failures (MTBF)
>100,000 Hours
Ports & interfaces
12VHPWR Connector
1
ATX 24 Pin Connectors
1
EPS 4+4 Pin Connectors
1
EPS 8 Pin Connector
1
PCI-e 6+2 Pin Connectors
3
Peripheral 4 Pin Connectors
4
SATA Connectors
8
Power
Efficiency
≥90% @ Typical Load
Input current
10 - 5 A
Input frequency
50-60Hz
Input voltage
100 - 240V
PFC
Active PFC
Power Good Signal
100 - 150 ms
Power supply type
Fully Modular
Total power
1250 W
Weight & dimensions
Fan diameter
135 mm
Product dimensions
160 x 150 x 86 mm

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