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Black rectangular ATX power supply with 120 mm fan and mesh grille

ASRock

ASRock PRO-650B 650 W power supply

SKU CH-CC8S-VJSCE MPN PRO-650B

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

  • ColorBlack
  • TypeATX 3.1 Compatible
  • Maximum Power650 W
  • Fans1 x 120 mm
  • Max PSU Length140 mm
  • Energy-Efficient80 PLUS BRONZE Certified

Option 650W

  • Delivers 650 W continuous power for demanding builds
  • 80 PLUS Bronze certification reduces wasted energy and heat
  • ATX 3.1 compatible design fits modern motherboard standards
  • 120 mm fan runs quietly under typical loads
  • Full protection suite guards components against voltage and thermal faults

Power for Value Builds

The ASRock PRO-650B is a 650 W ATX 3.1 compatible unit designed for value-focused users assembling mid-range systems. It carries 80 PLUS Bronze certification and a full protection suite including OCP, SCP, OVP, UVP, OTP and OPP. A rated MTBF above 100,000 hours backs long-term operation.

Cable Layout and Clearance

The supply provides one 24-pin motherboard cable, one EPS 12V CPU connector and one PCIe 6+2-pin connector for graphics power. Four SATA and two 4-pin peripheral plugs handle drives and accessories. At 140 mm deep it fits compact cases while leaving room for cable routing behind the motherboard tray.

Thermals and Acoustics

A single 120 mm fan manages airflow across the 150 x 86 mm frame. The low-noise design keeps acoustic output modest under typical gaming or productivity loads. Bronze-rated efficiency reduces waste heat, helping the fan run slower during everyday use.

Highlights

  • Delivers 650 W continuous power for demanding builds
  • 80 PLUS Bronze certification reduces wasted energy and heat
  • ATX 3.1 compatible design fits modern motherboard standards
  • 120 mm fan runs quietly under typical loads
  • Full protection suite guards components against voltage and thermal faults

Specifications

BrandASRock
SeriesPRO Series
ModelPRO-650B
ColorBlack
TypeATX 3.1 Compatible
Maximum Power650 W
Fans1 x 120 mm
Max PSU Length140 mm
Energy-Efficient80 PLUS BRONZE Certified
ProtectionOCP, SCP, OVP, UVP, OTP, OPP
MTBF>100,000 Hours
Cable SpecMotherboard cable (24pin): 1
EPS 12V CPU connectors (4+4pin): 1
PCIe connectors (6+2pin): 1
4-pin Peripheral connectors: 2
SATA 5-pin connectors: 4
Dimensions140 x 150 x 86mm
Shipping weight1.81 kg
Package size267 × 203 × 102 mm

Other versions of this model

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Questions about this item

Will the 650 W maximum power hold steady during long gaming sessions?

The 80 PLUS BRONZE certification means the unit delivers its rated 650 W continuously while keeping efficiency above 80 % at typical loads, so sustained output stays stable.

How loud is the 120 mm fan when the PSU runs all day?

A low-noise 120 mm fan is specified; it spins only as fast as needed to cool the unit, keeping acoustic output low even under continuous operation.

Does my motherboard need an ATX 3.1 header to use this power supply?

The unit is ATX 3.1 compatible and includes a standard 24-pin motherboard cable plus one 4+4-pin EPS connector, so it works with any modern ATX board.

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