SKU:
CGR-GDN-850
COUGAR GR 850W Fully Modular ATX 3.1 Power Supply — 80 PLUS Gold, PCIe 5.1 12V-2X6, 91% Efficiency, 120mm Rifle-Bearing Fan, Japanese Capacitor, 140mm Compact Design, Black
$ 105.00
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Description
Expert Features
- Next-Generation ATX 3.1 Power: Built for modern high-performance systems, with the transient-load resilience required to handle demanding GPUs and multi-core processors without flinching.
- Native PCIe 5.1 GPU Support: The dedicated 12V-2X6 connector powers compatible next-generation graphics cards through one direct 12+4-pin cable—no 6+2-pin adapter circus required.
- ATX 3.1 Power Excursion Testing: Passes the four ATX 3.1 dynamic-load tests; COUGAR publishes 850W-model results of 1,500W for 100μs, 1,350W for 1ms, 1,200W for 10ms, and 900W for 100ms.
- 80 PLUS Gold Efficiency: Reaches up to 91% conversion efficiency, reducing wasted energy, heat generation, and electricity costs while maintaining stable power delivery.
- Cybenetics-Certified Performance: The 850W model earns a Platinum Cybenetics efficiency rating and an A- noise rating for independently evaluated power efficiency and acoustics.
- Fully Modular Cabling: Connect only what your build needs, eliminate cable spaghetti, improve airflow, and make installation or upgrades dramatically cleaner.
- Quiet 120mm Cooling: COUGAR’s rifle-bearing fan uses grooved blades and an integrated stabilizing ring to reduce flex, turbulence, and unwanted noise.
- Japanese Main Capacitor: A durable 105°C Japanese main capacitor strengthens reliability under sustained gaming and workstation loads.
- Tightly Regulated Output: LLC, DC-to-DC, and Tri-Sense regulation across the 3.3V, 5V, and 12V rails maintains voltage regulation within 5% for stable operation.
- Full Electrical Protection: SCP, OCP, OVP, UVP, OPP, and OTP protection automatically respond to short circuits, excess current, voltage irregularities, overloads, and overheating.
- 40°C Continuous Performance: Designed to deliver dependable output in ambient operating temperatures reaching 40°C—because serious builds do not live inside laboratory conditions.
- Compact 140mm Chassis: The short 140mm PSU body fits most ATX cases more easily and leaves valuable room for cables, cooling hardware, and cleaner routing.
- Embossed Black Finish: Sleek black housing and embossed black cables keep the power section of your build sharp, controlled, and zero-nonsense.
The COUGAR GEX PRO 850W and COUGAR GR 850W are both 80 PLUS Gold certified, fully modular ATX 3.1 power supplies that support PCIe 5.1 graphics cards with native 12+4 pin connectors.
Key Differences
- Efficiency & Noise Ratings (Cybenetics):
- GEX PRO 850W: Achieves a Cybenetics Gold efficiency rating and an A+ noise level rating.
- GR 850W: Reaches a higher Cybenetics Platinum efficiency rating for the 850W model, with an A- noise level rating.
- Cooling Fan & Bearings:
- GEX PRO 850W: Uses a Hydro Dynamic Bearing (HDB) fan featuring a grooved blade design built for ultra-quiet operation.
- GR 850W: Uses a rifle bearing fan with a grooved blade design.
- Capacitors:
- GEX PRO 850W: Features 105°C Japanese capacitors specifically for standby power.
- GR 850W: Features a 105°C Japanese capacitor for the main power line.
- Form Factor:
- GEX PRO 850W: Features a compact 140 mm length for better case compatibility.











Expert Specs
| Specification | Official Detail |
|---|---|
| Brand | COUGAR |
| Product Series | GR |
| Model Name | GR 850 |
| Manufacturer Model | CGR GDN-850 |
| Retail SKU | CGR-GDN-850 |
| Product Number | 31GR085001P01 |
| Color | Black |
| Rated Power | 850W |
| PSU Standard | Intel ATX 3.1 |
| GPU Power Standard | PCI Express 5.1 |
| Native GPU Connector | One 12V-2X6, 12+4-pin connector |
| 12V-2X6 Cable Length | 600mm |
| Dynamic Power Excursion | Up to 200% of rated output |
| 100μs Excursion Test | 1,500W |
| 1ms Excursion Test | 1,350W |
| 10ms Excursion Test | 1,200W |
| 100ms Excursion Test | 900W |
| Efficiency Certification | 80 PLUS Gold |
| Maximum Conversion Efficiency | Up to 91% |
| Cybenetics Efficiency Rating | Platinum; 850W model only |
| Cybenetics Noise Rating | A-; 850W model only |
| Cabling | Fully modular, embossed black cables |
| Cooling Fan | 120mm grooved-blade fan |
| Fan Bearing | Rifle bearing |
| Main Capacitor | 105°C Japanese capacitor |
| Power Design | LLC, DC-to-DC, and Tri-Sense for 3.3V, 5V, and 12V |
| Voltage Regulation | Within 5% |
| Operating Temperature | +10°C to +40°C |
| Storage Temperature | -40°C to +70°C |
| Operating Humidity | 20%–85% relative humidity, non-condensing |
| Storage Humidity | 5%–95% relative humidity, non-condensing |
| AC Input | 100–240V AC, 50–60Hz, 10A maximum |
| +3.3V Rail | 20A |
| +5V Rail | 20A |
| Combined +3.3V and +5V Output | 100W |
| +12V Rail | 70.8A / 849.6W |
| -12V Rail | 0.3A / 3.6W |
| +5Vsb Rail | 3A / 15W |
| Total Output | 850W |
| Mainboard Connector | 1 × 24-pin (20+4) |
| CPU Connectors | 2 × 8-pin (4+4) |
| Peripheral Connectors | 2 × 4-pin |
| SATA Connectors | 6 × 5-pin |
| 12V-2X6 Connectors | 1 × 12+4-pin |
| PCIe Connectors | 3 × 8-pin (6+2) |
| Protection Systems | UVP, OCP, SCP, OVP, OTP, and OPP |
| Dimensions Without Packaging | 140 × 150 × 86mm |
| Net Weight | 2.4kg |
| Packaging Dimensions | 305 × 210 × 105mm |
| Gross Weight | 2.75kg |
| EAN | 4710483779169 |
| UPC | 192554008974 |
| JAN | 4541995039331 |
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