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Black ATX power supply with 135mm fan, fully modular cables, dual-color 12V-2x6 connector visible

ASRock

ASRock PG-850G 850 W power supply

SKU CH-YPK1-W2CGF MPN PG-850G

Delivers 850 W through a fully modular ATX 3.1 and PCIe 5.1 design with a native 12V-2x6 connector, 80 PLUS Gold and Cybenetics Gold efficiency, a 135 mm FDB fan under iCool control.

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration135 mm Striped Axial FDB Fan
  • Efficiency certificationCybenetics Gold
  • PSU noise ratingCybenetics A
  • Mean time between failures>100,000 h

Model 850W

  • 850 W output handles demanding builds with 220 % excursion headroom
  • 80 PLUS Gold plus Cybenetics Gold efficiency cuts waste heat and lowers bills
  • Fully modular cabling keeps the case tidy and airflow clear
  • 135 mm FDB fan with iCool mode stays silent until load demands cooling
  • Native 12V-2x6 cable with TempGuard sensor protects against connector overheating

Power for ATX 3.1 and PCIe 5.1 builds

The ASRock PG-850G is an 850 W fully modular power supply built to the ATX 3.1 and PCIe 5.1 specifications. It targets system builders who need native 12V-2x6 connections for modern graphics cards and a quiet, efficient platform for current and future hardware.

850 W capacity with 220 % excursion headroom

The unit delivers 850 W continuous power and is rated to handle transient spikes up to 220 % of its maximum rating. 80 PLUS Gold and Cybenetics Gold certifications confirm high efficiency across typical loads, while the Lambda A noise rating and 135 mm FDB fan with iCool semi-passive operation keep acoustics low until higher power demands arrive.

Fully modular cabling with dual-colour 12V-2x6 lead

All cables detach completely, simplifying routing and reducing clutter inside the case. The native 12V-2x6 connector uses a green-and-black colour scheme to confirm full insertion, and an integrated NTC sensor triggers over-temperature protection at the GPU plug. A +5 V Boost switch raises the rail to approximately 5.15 V to compensate for voltage drop on heavily loaded systems. Japanese capacitors and a 100,000-hour MTBF rating support long-term reliability.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $130.99
Cheaper than about 55% of the 10,869 comparable items (median $142.99).
Max wattage 850 W
Typical for this category: the median of 930 items is 850 W.

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Specifications

Product
Brand nameASRock
Model namePG-850G
Product colorBlack
Product typeATX3.1 & PCIe5.1
Power
Max wattage850 W
Modular cablingFull Modular
Efficiency certificationCybenetics Gold
Size & build
Shipping weight3.54 kg
Package size305 × 229 × 127 mm
Environment & compliance
PSU noise ratingCybenetics A
More details
Fan configuration135 mm Striped Axial FDB Fan
Mean time between failures>100,000 h

Other versions of this model

5 more in the same range

Questions about this item

Will the 135 mm FDB fan and ATX 3.1 design work with my older motherboard and GPU?

The unit follows ATX 3.1 and PCIe 5.1 specifications while remaining backward compatible with earlier ATX versions; the 135 mm FDB fan fits standard ATX cases and the fully modular cables let you connect only what your existing hardware needs.

How can I confirm the PSU is running as intended after installation?

The iCool intelligent fan control keeps the 135 mm FDB fan off at low to medium loads, so silent operation under light use is normal; the dual-colour 12V-2x6 connector shows green when fully seated, and the +5V Boost switch can be toggled to maintain the rail at approximately 5.15 V if required.

What cables come in the box and what must I source separately?

The fully modular package includes the native 12V-2x6 dual-colour cable with NTC sensor, ATX 24-pin, EPS and PCIe leads; no extra cables are required for a standard build.

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