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White fully modular ATX power supply with 120mm fan and textured cables

Phanteks

Phanteks PH-P1200GH_WT02 1200W Platinum power supply

SKU CH-C306-6HPPW MPN PH-P1200GH_WT02

A fully modular 1200 W ATX 3.1 unit with PCIe 5.1 support, 80 PLUS Platinum efficiency and a 120 mm fan that stops below 40 % load

  • Max wattage1200 W
  • Modular cablingFull Modular
  • Fan configuration1 × 120 mm
  • Efficiency certification80 PLUS PLATINUM Certified
  • Output typeOPP (Overpower Protection) OVP (Over Voltage Protection) UVP
  • Mean time between failures>100,000 h

Model PH-P1200GH_WT02

  • 80Plus Platinum efficiency keeps power draw low and heat down
  • 1200 W output with ATX 3.1 and PCIe 5.1 support for modern GPUs
  • 12 V-2x6 cable delivers up to 600 W through a single connection
  • Fully modular design with individual textured cables and included combs for tidy routing
  • 120 mm fluid-dynamic-bearing fan stops completely under 40 % load for silent running

1200W Platinum ATX 3.1 power supply

The Phanteks AMP GH delivers 1200 W of continuous power on the Intel ATX 3.1 platform with PCIe 5.1 support. It uses 100 % Japanese capacitors and carries 80 PLUS Platinum certification. A 120 mm fluid dynamic bearing fan enables a zero-RPM mode below 40 % load for silent operation. The unit is fully modular with a compact 140 mm depth.

Individual textured cables and 12V-2x6 connector

Fully modular design ships with individually textured cables and included cable combs for clean routing. The native 12V-2x6 GPU cable supports up to 600 W through a single connection, meeting the latest PCIe 5.1 specification. This removes the need for adapters or daisy-chained connectors on modern graphics cards.

High-power builds needing ATX 3.1 and quiet running

Suits builders assembling high-end systems that require ATX 3.1 compliance, 1200 W headroom and a 140 mm deep form factor. The zero-fan mode appeals to users prioritising low noise at typical loads. Not for buyers who need a smaller SFX footprint, a lower wattage unit, or a non-modular design to reduce cost.

How it compares

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

Price $149.99
Typical for this category: the median of 10,869 items is $142.99.
Max wattage 1200 W
Higher than about 90% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand namePhanteks
Model namePH-P1200GH_WT02
Product colorWhite
Product typeIntel ATX 3.1/PCIe Gen5.1
Power
Max wattage1200 W
Modular cablingFull Modular
Efficiency certification80 PLUS PLATINUM Certified
Size & build
Shipping weight3.58 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

When will the 120 mm fan need replacement?

The fan is rated for more than 100000 hours of operation, so replacement is unlikely during typical system life.

What protection trips first during a sustained 1200 W load?

Over Temperature Protection will activate if internal temperatures exceed safe limits before any other protection engages.

How loud and hot does the unit get when running all day at high load?

Above 40% load the 120 mm fluid dynamic bearing fan spins up; below that threshold it stays at 0 RPM for silent operation.

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