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White fully modular ATX power supply with 120 mm fan

Phanteks

Phanteks AMP GH 850W Gold Power Supply PH-P850GH_WT01 White

SKU CH-RN3K-T74G0 MPN PH-P850GH_WT01

A fully modular 850 W ATX 3.1 power supply with PCIe 5.1 support, 80 Plus Gold efficiency, 120 mm fan offering zero-RPM mode under 40 % load, and a 12V-2x6 cable rated for 600 W

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration1 × 120 mm
  • Efficiency certification80 PLUS GOLD Certified
  • Output typeOPP (Overpower Protection) OVP (Over Voltage Protection) UVP
  • Mean time between failures>100,000 h

Model PH-P850GH_WT01

  • 850 W output supports demanding high-end graphics cards
  • 80 PLUS Gold certification reduces energy waste and heat
  • ATX 3.1 and PCIe 5.1 platform ready for next-generation GPUs
  • 12V-2x6 connector delivers up to 600 W through a single cable
  • Zero-RPM fan mode under 40 % load keeps operation virtually silent

White ATX 3.1 platform for next-gen GPUs

The Phanteks AMP GH 850W Gold unit delivers 850 W through a fully modular design with individually textured cables and cable combs. A 120 mm fluid-dynamic-bearing fan enables a zero-RPM mode below 40 % load for silent operation. The platform uses 100 % Japanese capacitors and meets 80 Plus Gold efficiency standards. It includes a native 12V-2x6 connector rated for 600 W to power modern graphics cards.

Replaces older ATX supplies lacking PCIe 5.1 support

Builders moving from a unit without the 12V-2x6 connector gain a single-cable GPU connection that carries up to 600 W. The jump is worth it when a new graphics card requires that connector or when the previous supply cannot sustain 850 W continuously. The compact 140 mm depth also fits cases where longer units would not.

Suits high-performance builds with modern GPUs

This supply fits enthusiasts assembling systems around current-generation graphics cards that draw up to 600 W through one cable. It is not for buyers who need more than 850 W total output, nor for compact builds that require an SFX form factor. Users without a PCIe 5.1 GPU will not use the 12V-2x6 connector.

How it compares

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

Price $86.99
Cheaper than about 73% 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 namePhanteks
Model namePH-P850GH_WT01
Product colorWhite
Product typeIntel ATX 3.1/PCIe Gen5.1
Power
Max wattage850 W
Modular cablingFull Modular
Efficiency certification80 PLUS GOLD Certified
Size & build
Shipping weight3.04 kg
Package size305 × 229 × 122 mm
More details
Fan configuration1 × 120 mm
Mean time between failures>100,000 h

Other versions of this model

5 more in the same range

Questions about this item

What depth case is needed for the 140 mm long PSU?

The unit is 140 mm deep so any ATX case that accepts a 140 mm power supply will fit it.

Which cable do I plug into a PCIe 5.1 graphics card and how far do I push it?

Use the included 12V-2x6 cable; push it in until the latch clicks to deliver up to 600 W.

When should I clean the 120 mm fan and how long is the unit rated to run?

Clean the fan when dust builds up; the MTBF is over 100,000 hours.

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