Cougar GEX X2 850W PSU Review

The Cougar GEX X2 850W is a dead silent PSU, with ATX v3.0 and PCIe 5.0 compatibility. It comes with a 450W 12VHPWR connector, so it will easily handle an NVIDIA GeForce RTX 4080, even some RTX 4090 models. 

The Cougar GEX X2 850W is included in my best ATX v3.0 & PCIe 5.0 PSU picks article.

The Cougar GEX X2 line includes two members, with 850W and 1000W max power. Both are ATX v3.0 and PCIe 5.0 compatible and are equipped with a 600W 12VHPWR connector. I have already reviewed the 1000W model, so it was time to look at the lower-capacity unit.

The dimensions are super-compact, with only 140mm depth, and the PSU utilizes a fully modular cable design. In Cybenetics, the GEX X2 850W achieves the Platinum efficiency rating, while in noise, it scores Cybenetic A+, meaning it is dead silent. The warranty is seven years long. With a price of $150, the GEX X2 850W is in line with the competition since the Thermaltake GF3 850W, one of the most affordable branded 850W ATX v3.0 PSUs, goes for $145. The GEX X2 model uses a platform provided by XHY. Although HEC is the mother company of Cougar, the latter still chooses to use platforms from other OEMs to be more competitive. This means that HEC should upgrade its offerings so Cougar won’t need to reach out to other OEMs for good ATX v3.0 platforms.




Technical Specifications:
  • Manufacturer (OEM): XHY
  • Max Power: 850W
  • Cybenetics Efficiency: [115V] Cybenetics Platinum (89-91%)
  • 80 Plus Efficiency: Gold
  • Noise: Cybenetics A+ (15-20 dB[A])
  • Compliance: ATX v3.0, EPS 2.92
  • Operating Temperature (Continuous Full Load): 0 – 40°C
  • Alternative Low Power Mode support: Yes
  • Power 12V combined: 850W
  • Number of 12V rails: 1
  • Power 5V + 3.3v: 100W
  • Power 5VSB: 15W
  • Cooling: 120mm Hydraulic Dynamic Bearing Fan (EFH-12E12H)
  • Semi-Passive Operation: ✓
  • Modular Design: Yes (Fully)
  • High Power Connectors: 2x EPS (2x cables), 4x PCIe 6+2 pin (2x cables), 1x PCIe 12+4 pin (450W)
  • Peripheral Connectors: 10x SATA (3x cables), 2x 4-pin Molex (2x cables)
  • ATX Cable Length: 660mm
  • EPS Cable Length: 650mm
  • 12VHPWR Cable Length: 650mm
  • Distance between SATA & 4-pin Molex: 115
  • In-cable capacitors: No
  • Dimensions (W x H x D): 150 mm x 85 mm x 140mm
  • Weight: 1.53 kg (3.37 lb)
  • Warranty: seven years
  • Street price (excluding VAT): $150

Power Specifications

Rail 3.3V 5V 12V 5VSB -12V
Max. Power Amps 20 20 70.8 3 0.3
Watts 100 850 15 3.6
Total Max. Power (W) 850
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