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Black ATX power supply unit with modular cables and a 12VHPWR connector visible

FSP

FSP HG2-850 1200W power supply

SKU CH-4AMD-10YQG MPN HG2-850

A 1200 W ATX power supply with 80 Plus Gold efficiency, ATX 3.0 and PCIe 5.0 support, full modular cabling and a 150 mm compact design

  • Max wattage1200 W
  • Power efficiency> 79%
  • Modular cablingYes
  • Power factor correctionActive
  • Main power connector20+4 Pin
  • PCIe power connectors2 × 8-Pin
  • 80 Plus Gold certification delivers 90% efficiency at 50% load
  • ATX 3.0 and PCIe 5.0 compliance includes native 12VHPWR connector for next-generation hardware
  • Fully modular design simplifies cable management and improves airflow
  • Eco switch keeps fan off below 30% load for silent operation
  • Conformal coating protects components in environments up to 95% relative humidity

Compact 1200 W ATX 3.0 power supply

The FSP Hydro G Pro delivers 1200 W from a 150 mm long ATX chassis. It targets builders assembling high-end workstations or gaming rigs that demand a single 12 V rail and native 12VHPWR support. The unit is not suited for compact cases that require SFX dimensions or for systems that need multiple 12VHPWR connectors.

Full-modular cabling frees case space

A fully modular design lets you attach only the cables your build requires, reducing clutter and improving airflow. The 20+4 pin main connector, one 4+4 pin CPU connector and two 8-pin PCIe connectors cover standard motherboard and graphics needs. Builders planning multi-GPU configurations with more than two 8-pin devices will need additional power distribution.

Eco switch enables semi-passive operation

An Eco switch stops the fan below 30 % load for silent idle and light workloads. Conformal coating protects internal components in environments up to 95 % relative humidity. 80 Plus Gold certification guarantees at least 90 % efficiency at 50 % load. The package includes no software utilities or RGB controllers.

How it compares

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

Price $141.99
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
Product colorBlack
Product typeATX
Performance
Frequency50/60 Hz
Ports & slots
PCIe power connectors2 × 8-Pin
12V power connector1 × 4 Pin ATX 12 V
Power
Max wattage1200 W
Power efficiency> 79%
Modular cablingYes
Power factor correctionActive
Main power connector20+4 Pin
12V railsYes
Efficiency certification80 PLUS GOLD Certified
Supply voltage100–120 V/ 200–240 V
Size & build
Product weight8 lb (3.63 kg)
Environment & compliance
PSU noise ratingCybenetics A-

Questions about this item

What is the 80 Plus Gold efficiency threshold this unit must meet at 50% load?

The 80 Plus Gold certification guarantees a minimum of 90% efficiency at 50% of the 1200 W rated output.

How does the fan behave during all-day operation at typical desktop loads?

The Eco switch keeps the fan off until the load exceeds 30%, so it stays silent during light use and only spins when power draw rises.

Which native 12VHPWR cable is included for a modern graphics card?

The ATX 3.0 compliant design provides a native 12VHPWR connector and cable for PCIe 5.0 graphics cards.

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