The Cougar GEX PRO 850 is an 850W fully modular power supply certified 80 PLUS Gold (up to 91% efficiency) and compliant with ATX 3.1 and PCIe 5.1. A native 12V-2x6 (12+4-pin) cable powers the latest graphics cards, while 70.8A on the +12V rail, tight 2% voltage regulation and Japanese 105°C capacitors deliver stable power from a compact 140mm chassis.
Key Features
850W output with 80 PLUS Gold efficiency, up to 91%
ATX 3.1 / PCIe 5.1 with a native 12V-2x6 (12+4-pin) cable
Handles power excursions up to 200% of rated power (ATX 3.1)
Fully modular cables with a 650mm PCIe cable for easy routing
Compact 140mm length, among the shortest fully modular units
120mm fan with grooved blades for low noise
Japanese 105°C capacitors and tight 2% voltage regulation
Full protection: UVP, OCP, SCP, OVP, OTP and OPP
Full Specifications
General
Brand
Cougar
Model
GEX PRO 850
Part Number
31GP085004P01
Wattage
850W
Form Factor
ATX
ATX / PCIe Standard
ATX 3.1, PCIe 5.1
Colour
Black (embossed design)
Efficiency
80 PLUS Rating
80 PLUS Gold
Peak Efficiency
Up to 91%
Cybenetics
Gold efficiency, A+ noise
Voltage Regulation
2%
Input
AC Input
100-240V~, 12-6A, 50-60Hz
DC Output
+3.3V
20A
+5V
20A
+3.3V & +5V Combined
100W
+12V
70.8A (849.6W)
-12V
0.3A (3.6W)
+5VSB
3A (15W)
Total Output
850W
ATX 3.1 Power Excursion
100 µs
1500W
1 ms
1350W
10 ms
1200W
100 ms
900W
Connectors
Motherboard
1x 20+4-pin
CPU (EPS)
2x 4+4-pin
PCIe 5.1 12V-2x6
1x 12+4-pin
PCIe 8-pin
3x (6+2-pin)
SATA
8x
Peripheral (4-pin)
3x
Modular Design
Fully modular
Cooling & Components
Fan
120mm with grooved blades
Capacitors
Japanese 105°C
Operating Rating
Full performance at 40°C ambient
Protections & Reliability
Protection Features
UVP, OCP, SCP, OVP, OTP, OPP
MTBF
100,000 hours
Dimensions & Weight
Dimensions (L x W x H)
140 x 150 x 86 mm
Package Dimensions
330 x 215 x 107 mm
Net Weight
2.18 kg
Who Is It For?
Gamers running RTX 40/50 series or similar high-end GPUs
Builders with compact ATX cases who still want fully modular cables
Users who want efficient, quiet Gold-rated power
Multi-core CPU workstations and gaming rigs
In the Box
Cougar GEX PRO 850 power supply
Modular cable set
AC power cord
Mounting screws and user manual
Frequently Asked Questions
Is it ready for RTX 50 series graphics cards? Yes. It is ATX 3.1 and PCIe 5.1 compliant with a native 12V-2x6 (12+4-pin) cable and three extra 6+2-pin PCIe connectors.
Will it fit a small case? It measures 140 x 150 x 86 mm, one of the shortest fully modular ATX units, so it fits most compact ATX cases.
How efficient is it? It is 80 PLUS Gold certified with up to 91% efficiency.
Order the Cougar GEX PRO 850W power supply from PC PARK with warranty and fast delivery across Saudi Arabia.
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Our Milestones
2023
Expanded our product catalog with the latest gaming and professional hardware, serving thousands of satisfied customers
2024
Launched our online store and delivery service, making tech accessible to customers across Saudi Arabia
2025
Reached a major milestone in customer satisfaction with enhanced after-sales support and warranty services
2026
Continuing to grow as Saudi Arabia's trusted destination for technology, gaming, and custom PC solutions
