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Rectangular black ATX power supply with 135 mm fan and modular cable sockets

ASUS

ASUS Prime AP-850G 850W ATX 3.0 fully modular power supply

SKU CH-VBXW-PTFAG MPN AP-850G

Fully modular 850 W ATX 3.0 power supply with 80 Plus Gold efficiency, 135 mm fan, 16-pin PCIe Gen 5 cable and dual ball bearings

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm
  • PSU length limit150 mm
  • Efficiency certification80 PLUS GOLD Certified
  • Built-in protectionOPP/OVP/UVP/SCP/OCP/OTP

Wattage 850W

  • Delivers 850 W for demanding builds
  • 80 Plus Gold certification ensures high efficiency
  • ATX 3.0 compliant with 16-pin PCIe Gen 5 cable
  • Fully modular design keeps cabling tidy
  • Dual ball-bearing fan offers extended lifespan

ATX 3.0 power delivery

This fully modular ATX 3.0 power supply provides 850 W of continuous output with 80 Plus Gold efficiency. It includes a native 16-pin PCIe Gen 5.0 cable for modern graphics cards and uses dual ball-bearing fan technology for extended lifespan. The compact 150 mm depth fits most standard cases.

Suited for single-GPU builds.

Builders assembling a system with one high-end GPU and a modern CPU will find the two CPU 4+4-pin connectors and single 16-pin connector convenient. Systems that require two or more 16-pin connections, or more than three 8-pin PCIe cables, should look at a higher-wattage unit with additional native connectors.

Native 16-pin PCIe Gen 5.0 connector included

The bundled 16-pin cable plugs directly into PCIe Gen 5.0 graphics cards without adapters, satisfying the ATX 3.0 power-excursion requirements. If your graphics card uses only traditional 8-pin inputs, the package also supplies a 16-pin-to-dual-8-pin cable and a separate 1-to-1 8-pin cable.

How it compares

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

Price $98.99
Cheaper than about 68% 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 nameASUS
Model nameAP-850G
Product typeATX12 V
Ports & slots
Output type+3.3 V@20A, +5 V@20A
Connection typesMB 24/20-pin x 1
CPU 4+4-pin x 2
PCI-E 16-pin x 1 (both PSU & connector side)
PCI-E 8-pin x 3
SATA x 5
PERIPHERAL x 3
Power
Max wattage850 W
Modular cablingFull Modular
Efficiency certification80 PLUS GOLD Certified
Built-in protectionOPP/OVP/UVP/SCP/OCP/OTP
Supply voltage100–240 V
Size & build
Product dimensions150 × 150 × 86 mm
Product weight1.502 kg (single PSU)
Shipping weight3.02 kg
Package size305 × 216 × 142 mm
Compatibility
PSU length limit150 mm
More details
Fan configuration1 × 135 mm

Other versions of this model

1 more in the same range

Questions about this item

How much power does the 850 W rating actually deliver to the components in my build?

The unit provides up to 850 W total, with 20 A on the 3.3 V rail, 20 A on the 5 V rail and 0.3 A on the 5 VSB rail.

What does the ATX 3.0 label mean for the 16-pin connector in daily use?

The PSU follows ATX 3.0 guidelines and includes a 16-pin PCIe cable ready for PCIe 5.0 graphics cards.

Will the 150 mm length and 86 mm height fit my mid-tower case?

The PSU measures 150 mm long, 150 mm wide and 86 mm high, matching standard ATX dimensions.

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