We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Fully modular ATX 3.1 power supply, matte black finish, 120 mm fan, compact 140 mm depth

COUGAR

COUGAR GR 850 850 W ATX 3.1 power supply

SKU CH-TYPG-F3MR3

Fully modular 850 W ATX 3.1 unit with native PCIe 5.1 12+4 pin connector, 80 PLUS Gold efficiency up to 91 %, 105 °C Japanese main capacitors and a 120 mm rifle-bearing fan rated A- for noise

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration1 × 120 mm
  • Product typeATX
  • 850 W continuous output at 40 °C ambient
  • 91 % efficiency with 80 PLUS Gold certification
  • Native PCIe 5.1 12V-2X6 connector for 200 % power excursions
  • 105 °C Japanese main capacitor for long-term reliability
  • A- Cybenetics noise rating from 120 mm rifle-bearing fan

850 W ATX 3.1 PSU for modern builds

The COUGAR GR 850 is a fully modular power supply rated at 850 W and built to the ATX 3.1 standard. It includes a native 12+4-pin PCIe 5.1 connector that can handle 200 % power excursions. The unit targets builders who need dependable delivery for current multi-core platforms and next-generation graphics cards. It fits compact cases with a 140 mm depth.

Gold efficiency and quiet operation at 40 °C

80 PLUS Gold certification confirms up to 91 % efficiency during typical loads, reducing waste heat and electricity draw. A 120 mm rifle-bearing fan with grooved blades runs at an A- Cybenetics noise rating, keeping acoustics low even under sustained demand. The main capacitor is rated for 105 °C, and the unit maintains full output at 40 °C ambient temperature. Platinum Cybenetics efficiency rating applies to this 850 W model.

Fully modular cables simplify cable management

Every cable detaches from the unit, so only the required leads stay inside the chassis. The single 12+4-pin cable connects directly to PCIe 5.1 graphics cards without adapters, eliminating extra junctions that can affect signal quality. Japanese 105 °C main capacitors improve long-term reliability under high thermal stress. No additional software or accessories are bundled.

How it compares

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

Price $74.99
Cheaper than about 77% of the 10,869 comparable items (median $142.99).
Max wattage 850 W
Typical for this category: the median of 930 items is 850 W.

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameCOUGAR
Product lineGR Series
Model nameGR 850
Product typeATX
Power
Max wattage850 W
Modular cablingFull Modular
More details
Fan configuration1 × 120 mm

Questions about this item

How do I connect the native 12V-2X6 cable to my PCIe 5.1 graphics card without using an adapter?

Plug the single 12+4-pin cable directly into the card's 12V-2X6 socket; the connector is keyed so it only fits one way, and the PSU side uses the dedicated PCIe 5.1 port on the modular panel.

What component inside the GR 850 is rated for 105 °C and may need replacement after years of heavy load?

The main Japanese capacitor carries a 105 °C rating; under sustained high temperatures it will age faster and is the part most likely to require replacement first.

At what ambient temperature does the 850 W unit still deliver its full rated output without derating?

The power supply is specified to provide the full 850 W continuously at up to 40 °C ambient temperature.

More in ATX Desktop Power Supplies

Similar items