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Black rectangular ATX power supply unit with modular cable sockets and a 135mm fan grille

ASUS

ASUS ROG-STRIX-650G 650W ATX power supply

SKU CH-TW82-PEY29 MPN ROG-STRIX-650G

A fully modular 650 W ATX power supply with 80 Plus Gold efficiency, a 135 mm dual ball-bearing fan, 160 mm depth and Japanese capacitors

  • Max wattage650 W
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm Dual Ball Bearing fan
  • Main power connector20+4Pin
  • 12V railsSingle
  • PCIe power connectors4 × 6+2-Pin

Model ATX 80+ Gold (650W)

Edition Black

  • 80 Plus Gold certified for energy efficiency
  • 650 W single +12 V rail delivers 54 A
  • Fully modular cables reduce build clutter
  • 0 dB Axial-tech fan with dual ball bearings runs silently at low load
  • 135 mm fan and 160 mm length fit compact cases

650W ATX Gold power supply

The ASUS ROG-STRIX-650G delivers 650 W of continuous power through a single +12 V rail rated at 54 A. It carries 80 Plus Gold certification and uses 100 % Japanese capacitors for stable output. The unit is fully modular and fits ATX12V cases with a maximum depth of 160 mm. Builders who need reliable efficiency for mid-range gaming or workstation systems will find it suitable.

Sustained-load behaviour

A 135 mm dual ball-bearing fan with Axial-tech blades runs at 0 dB during light loads, activating only when internal temperatures rise. ROG heatsinks cover critical components to dissipate heat during extended sessions. Dual ball bearings are rated to last up to twice as long as sleeve designs. Active PFC and over-voltage protection maintain clean power across the 100–240 V input range.

Single +12 V rail at 54 A

The entire 650 W capacity is available on one +12 V rail, simplifying cable routing for high-draw graphics cards. Four PCIe 6+2-pin connectors support multi-GPU configurations, while eight SATA and three peripheral plugs handle storage and accessories. This rail layout is the decisive specification when matching the PSU to a graphics card’s power requirement.

How it compares

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

Price $80.99
Cheaper than about 75% 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 nameASUS
Product lineROG Strix
Model nameROG-STRIX-650G
Product typeATX12 V
Graphics
SLI supportNo
CrossFire supportNo
Ports & slots
PCIe power connectors4 × 6+2-Pin
SATA power connectors8
Output type+3.3 V@20A, +5 V@20A, +12 V@54A, +5VSB@3A
Connection types1 x MB 24/20-pin
2 x CPU 4+4-pin
4 x PCI-E 6+2-pin
8 x SATA
3 x Peripheral
Power
Max wattage650 W
Modular cablingFull Modular
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Supply voltage100–240 V
Power factor correctionActive
Size & build
Product dimensions3.39 in × 5.91 in × 6.3 in
Product weight3.86 lb (1.75 kg)
Shipping weight3.08 kg
Package size318 × 183 × 114 mm
Compatibility
PSU length limit160 mm
In the box
Included items1 x Power Cord
1 x Motherboard Power cable (610 mm)
2 x CPU Cable (1000 mm)
2 x PCI-E Cable (675 mm)
2 x SATA Cable (810 mm/860 mm)
1 x Peripheral (450 mm)
2 x Join the ROG badge
1 x ROG logo magnet
3 x ROG label
*MB/ CPU/ PCI-E cables come with embedded capacitors in the middle.
Environment & compliance
Regulatory approvalsROHS
More details
Fan configuration1 × 135 mm Dual Ball Bearing fan

Other versions of this model

4 more in the same range

Questions about this item

How loud is the 135mm Axial-tech fan when the 650W unit runs all day?

The 0dB mode stops the fan completely at low loads, and the dual ball-bearing design keeps noise low when it spins up under sustained 650W output.

Which cables must I already have to install this fully modular ATX supply?

None — the box includes the 24-pin motherboard, two 4+4-pin CPU, four 6+2-pin PCIe, eight SATA and three peripheral cables.

Will the single 12V rail delivering 54A work with my older 20+4-pin motherboard and legacy drives?

Yes, the 20+4-pin main connector, two 4+4-pin CPU plugs and three peripheral connectors support older boards and drives directly.

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