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Black rectangular ATX power supply with 120 mm fan and green-accented cables

ASRock

ASRock PRO-850G 850 W power supply

SKU CH-9RTY-MZAMM MPN PRO-850G

An 850 W ATX 3.1 power supply with 80 PLUS Gold efficiency, a native 12V-2x6 connector, and a quiet 120 mm fan

  • ColorBlack
  • TypeATX 3.1 Compatible
  • Maximum Power850 W
  • Fans1 x 120 mm
  • Max PSU Length140 mm
  • Energy-Efficient80 PLUS GOLD Certified

Option 850W

  • 850 W output powers demanding builds
  • 80 PLUS Gold certification cuts wasted energy
  • ATX 3.1 and PCIe 5.1 ready for modern GPUs
  • Native 12V-2x6 connector with dual-colour design confirms full insertion
  • 120 mm fan and 140 mm depth keep noise low in compact cases

850 W ATX 3.1 power supply

The ASRock PRO-850G delivers 850 W of continuous power through an ATX 3.1 compatible design. It carries 80 PLUS Gold certification for high efficiency under typical loads. A single 120 mm fan provides cooling while the unit fits a compact 140 mm depth. The fully black finish suits standard desktop builds.

Who should choose this unit

Builders needing a native 12V-2x6 connector for modern graphics cards will find the required PCIe 5.1 cable included. The dual-colour connector helps confirm a secure seat during assembly. Systems that require multiple EPS cables or more than two 6+2 pin PCIe plugs should consider a different model.

Deciding specification — native 12V-2x6 cable

The presence of a factory-fitted 12+4 pin PCIe 5.1 connector is the single detail that determines compatibility with current high-end GPUs. Without it an adapter would be required, adding bulk and potential failure points. Verify your graphics card needs this connector before purchasing.

Points forts

  • 850 W output powers demanding builds
  • 80 PLUS Gold certification cuts wasted energy
  • ATX 3.1 and PCIe 5.1 ready for modern GPUs
  • Native 12V-2x6 connector with dual-colour design confirms full insertion
  • 120 mm fan and 140 mm depth keep noise low in compact cases

Caractéristiques

BrandASRock
SeriesPRO Series
ModelPRO-850G
ColorBlack
TypeATX 3.1 Compatible
Maximum Power850 W
Fans1 x 120 mm
Max PSU Length140 mm
Energy-Efficient80 PLUS GOLD Certified
ProtectionOCP, SCP, OVP, UVP, OTP, OPP
MTBF>100,000 Hours
Cable SpecMotherboard cable (24pin): 1
EPS 12V CPU connectors (4+4pin): 1
PCIe5.1 connectors(12+4pin) Dual Color: 1
PCIe connectors (6+2pin): 2
4-pin Peripheral connectors: 2
SATA 5-pin connectors: 4
Dimensions140 x 150 x 86mm
Poids d’expédition1.81 kg
Dimensions du colis267 × 203 × 102 mm

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Questions sur cet article

Will the 120 mm fan need replacing before the 100000-hour MTBF rating?

The unit is rated for more than 100000 hours mean time between failures, so the fan should last the rated period under normal use.

What limits output first when the PSU runs at full 850 W continuously?

Over-temperature protection will engage before sustained 850 W load can damage the unit.

How loud and hot does the 120 mm fan get during all-day operation?

The low-noise 120 mm fan keeps sound low while 80 PLUS Gold efficiency reduces waste heat during continuous use.

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