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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

  • ColorBlack
  • TypeIntel ATX 3.1/PCIe Gen5.1
  • Maximum Power1200 W
  • Fans1 x 120 mm
  • ModularFull Modular
  • Energy-Efficient80 PLUS PLATINUM Certified

Option 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.

Highlights

  • 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

Specifications

BrandPhanteks
ModelPH-P1200GH_BK02
ColorBlack
TypeIntel ATX 3.1/PCIe Gen5.1
Maximum Power1200 W
Fans1 x 120 mm
ModularFull Modular
Energy-Efficient80 PLUS PLATINUM Certified
OutputOPP (Overpower Protection)
OVP (Over Voltage Protection)
UVP (Under voltage protection
SCP (Short Circuit Protection)
OCP (Over Current Protection)
OTP (Over Temperature Protection)
No-Load Protection
Reset Protection
MTBF>100,000 Hours
Shipping weight3.54 kg
Package size305 × 229 × 122 mm

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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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