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

Phanteks

Phanteks PH-P1200GH_BK02 1200W Platinum power supply

SKU CH-JD95-HRQ6K MPN PH-P1200GH_BK02

Fully modular 1200 W ATX 3.1 unit with PCIe 5.1 12V-2x6 cable, 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_BK02

  • ATX 3.1 and PCIe 5.1 platform readies the build for next-gen components
  • 80 PLUS Platinum efficiency cuts waste heat and lowers running costs
  • 120 mm fluid-dynamic fan stays silent up to 40 % load
  • Fully modular individual cables with combs keep routing clean
  • 12V-2x6 connector delivers up to 600 W to the GPU on one cable

1200W Platinum ATX 3.1 power supply

This fully modular unit delivers 1200 W of continuous power for high-end desktop builds. It targets enthusiasts assembling systems with modern GPUs and CPUs that demand the ATX 3.1 platform. The black finish and individual textured cables suit clean, showcase-oriented assemblies. A 120 mm fluid dynamic bearing fan provides cooling with a zero-RPM mode at low loads.

PCIe 5.1 12V-2x6 connector limited to 600 W

The native 12V-2x6 cable complies with PCIe 5.1 and ATX 3.1 specifications. It supplies up to 600 W through a single connection, removing the need for multiple legacy adapters on compatible graphics cards. Builds requiring more than 600 W for a single GPU cannot be served by this connector. The ATX 3.1 platform also enables faster transient response for modern components.

Replaces older ATX 2.x units lacking native

Upgrading from a pre-ATX 3.1 supply eliminates cable adapters and improves efficiency with 80 PLUS Platinum certification. The jump is worthwhile when installing a PCIe 5.1 graphics card or when a fully modular, individually sleeved cable set simplifies routing in a compact 140 mm depth chassis. Systems staying on legacy GPU power connectors gain no connector advantage.

How it compares

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

Price $129.99
Cheaper than about 55% of the 10,869 comparable items (median $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_BK02
Product colorBlack
Product typeIntel ATX 3.1/PCIe Gen5.1
Power
Max wattage1200 W
Modular cablingFull Modular
Efficiency certification80 PLUS PLATINUM Certified
Size & build
Shipping weight3.54 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

Which Phanteks AMP GH wattage should I choose for a system with a high-end GPU?

The series offers 750, 850, 1000 and 1200 watt models; pick the 1200 watt unit if your build needs maximum headroom for a 600 watt GPU and heavy overclocking.

What does the 1200 watt rating mean when the PSU is installed in a PC?

It can deliver up to 1200 watts of continuous DC power to all components combined, with the 12V-2x6 cable alone supplying up to 600 watts to a modern graphics card.

How does the ATX 3.1 and PCIe 5.1 platform limit what I can connect?

The platform includes a native 12V-2x6 connector rated for 600 watts, so a single cable runs a Gen 5.1 GPU without adapters, while the fully modular design lets you attach only the cables your build requires.

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