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Rectangular black ATX power supply with modular cable sockets and a 135 mm fan grille

FSP

FSP 1350 power supply 1350W ATX 3.1 PCIe 5.1 80 Plus Platinum

SKU CH-R72H-17PT7 MPN 1350

ATX 3.1 compliant 1350 W unit with dual PCIe 5.1 connectors and 80 Plus Platinum efficiency

  • Max wattage1350 W
  • Power efficiency> 79%
  • Modular cablingYes
  • Power factor correctionActive
  • Main power connector24Pin
  • 12V rails2
  • Delivers 1350 W for high-end multi-GPU builds
  • 80 Plus Platinum rating reaches 92 % efficiency at typical load
  • ATX 3.1 and PCIe 5.1 (12V-2X6) connectors support latest graphics cards
  • Eco semi-fanless switch stops the 135 mm FDB fan at low load
  • Fully modular ribbon cables simplify routing and keep the interior tidy

High-wattage ATX 3.1 supply for demanding builds

This 1350 W unit meets ATX 3.1 and PCIe 5.1 requirements, delivering up to 1350 watts through a single +12 V rail. It targets enthusiasts and workstation builders who need headroom for multi-GPU configurations or sustained heavy compute loads. The fully modular design uses flat ribbon cables to simplify routing in tight chassis.

Semi-fanless operation and 92 % typical efficiency

An eco switch enables semi-fanless mode, so the 135 mm FDB fan stays off until internal temperatures demand active cooling. At typical loads the unit exceeds 92 % efficiency, reducing waste heat and keeping power draw from the wall lower. Active PFC handles 110 – 240 V input automatically for worldwide use.

Ribbon cables, DC-to-DC modules

Flat ribbon cables improve cable management and airflow compared with traditional sleeved wires. Separate +3.3 V and +5 V DC-to-DC modules provide tighter voltage regulation for modern platforms. Magnetic side stickers can be swapped to match a build theme without tools. Full protection suite covers over-current, over-voltage, over-power, short-circuit, over-temperature and under-voltage events.

How it compares

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

Price $226.99
Pricier than about 68% of the 10,869 comparable items (median $142.99).
Max wattage 1350 W
Higher than about 91% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameFSP Group
Product line80 Plus
Model name1350
Product typeATX 3.0 Compatible
Ports & slots
PCIe power connectors1 × 6+2-Pin
Connection types1 × 24 pin ATX
Power
Max wattage1350 W
Power efficiency> 79%
Modular cablingYes
Power factor correctionActive
Main power connector24Pin
12V rails2
Efficiency certification80 PLUS Certified
Supply voltage110–120 V/ 220–240 V

Questions about this item

Will this unit fit a standard ATX case and deliver the full 1350 W on a 240 V mains supply?

Yes, it follows the ATX form factor and the input range covers 220 – 240 V, so full rated power is available on UK mains.

Does the modular cable set include two native 12V-2X6 connectors for modern PCIe 5.1 graphics cards?

The specification lists two PCIe 5.1 (12V-2X6) connectors, so current-generation GPUs can be powered without adapters.

How quiet is the 135 mm FDB fan under light loads?

An eco semi-fanless switch stops the fan completely until internal temperatures rise, giving silent operation at idle and low load.

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