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Black rectangular ATX power supply with 120 mm fan and modular cables

ASRock

ASRock PRO-650G 650 W power supply

SKU CH-682C-8N3J3 MPN PRO-650G

ATX 3.1 compatible 650 W unit with 80 PLUS Gold efficiency, a 120 mm fan and full protection suite

  • Max wattage650 W
  • Fan configuration1 × 120 mm
  • PSU length limit140 mm
  • Efficiency certification80 PLUS GOLD Certified
  • Built-in protectionOCP, SCP, OVP, UVP, OTP, OPP
  • Mean time between failures>100,000 h

Wattage 650W

  • 80 PLUS Gold certification saves energy at up to 650 W output
  • ATX 3.1 compatibility fits modern motherboards without adapters
  • 120 mm fan runs quietly while cooling the 140 mm depth chassis
  • Full protection suite OCP SCP OVP UVP OTP OPP guards every rail
  • MTBF rated above 100000 hours for long-term reliability

ATX 3.1 compatible 650 W unit

The ASRock PRO-650G is an ATX 3.1 compatible power supply rated at 650 W. It carries 80 PLUS Gold certification for high efficiency. A single 120 mm fan provides cooling in a compact 140 mm depth chassis. It fits standard ATX cases and supports modern platform requirements.

Value builds needing one GPU

This unit suits builders assembling a mid-range system with a single graphics card. It provides one 6+2 pin PCIe connector and one EPS 4+4 pin CPU connector. Builds requiring two or more PCIe power cables should look at a different model. The 650 W limit also rules out high-end multi-GPU configurations.

One 6+2 pin PCIe connector

The power supply includes exactly one 6+2 pin PCIe connector for graphics card power. Verify that your chosen GPU requires only a single such connector before purchasing. The unit also supplies four SATA connectors and two 4-pin peripheral connectors for drives and accessories.

How it compares

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

Price $56.99
Cheaper than about 87% of the 10,869 comparable items (median $142.99).
Max wattage 650 W
Lower than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameASRock
Product linePRO Series
Model namePRO-650G
Product colorBlack
Product typeATX 3.1 Compatible
Power
Max wattage650 W
Efficiency certification80 PLUS GOLD Certified
Built-in protectionOCP, SCP, OVP, UVP, OTP, OPP
Size & build
Product dimensions140 × 150 × 86 mm
Shipping weight1.81 kg
Package size267 × 203 × 102 mm
Compatibility
PSU length limit140 mm
More details
Fan configuration1 × 120 mm
Mean time between failures>100,000 h

Other versions of this model

2 more in the same range

Questions about this item

Will the 140 mm length fit my ATX case?

The unit measures 140 mm deep, 150 mm wide and 86 mm high, matching standard ATX dimensions.

How do I connect the 24-pin motherboard cable without bending pins?

Route the single 24-pin cable through the case grommet first, then press it straight onto the board header until the latch clicks.

When should I plan to replace the 120 mm fan?

The fan is rated for over 100000 hours MTBF, so replacement is unlikely during normal use.

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