GST 650/750/850W
NATIVE DIRECT ATX3.1
The COUGAR GST series boasts high-quality 80 PLUS Gold certification, ensuring reliable power delivery even in 40°C environments. Featuring a native PCIe 12V-2X6 connector design, it is a non-modular power supply that complies with the latest Intel ATX 3.1 and PCIe 5.1 standards. This PSU efficiently powers next-gen graphics cards with a single 12+4-pin cable, achieving up to 91% conversion efficiency. It not only saves energy and reduces electricity costs but also provides stable power to all components.

- Supports PCI Express 5.1 Graphics Cards with 12+4 Pin Connector for true 200% power excursion dynamic outputs.
- 80 PLUS Gold Certified for up to 91% efficiency in power conversion, reducing electricity bills.
- Durable HDB Fan with Hydro Dynamic Bearing for extended durability and lower noise levels.
- 105°C Japanese capacitors for standby power .
- Designed for current and next-generation multi-core CPU platforms, is compatible with the latest PC technology.
- Powerful performance even at 40°C ambient temperature.
- Supports PCI Express 5.1 Graphics Cards with 12+4 Pin Connector for true 200% power excursion dynamic outputs.
- 80 PLUS Gold Certified for up to 91% efficiency in power conversion, reducing electricity bills.
- Durable HDB Fan with Hydro Dynamic Bearing for extended durability and lower noise levels.
- 105°C Japanese capacitors for standby power .
- Designed for current and next-generation multi-core CPU platforms, is compatible with the latest PC technology.
- Powerful performance even at 40°C ambient temperature.
GST 650/750/850W
80 PLUS Gold certified with ATX 3.1


ATX 3.1 Certified
Designed to support next-generation systems, the COUGAR GST series conforms to the ATX 3.1 standard. Featuring a native 12V-2X6 design, it provides power to the next-generation graphics cards through a single 12+4-pin cable. With an 80 PLUS Gold efficiency rating, it offers high-quality stability, durability, and reliability.

The COUGAR GST series passes the four strict power excursion tests from PSU ATX 3.1 Guide, in which the spike power consumption must bear up to 200% of the rated power for 100μs.
ATX 3.1 Criteria | Dynamic Power Excursion |
---|---|
100us | 1500W |
1ms | 1350W |
10ms | 1200W |
100ms | 900W |
Note: Above test results based on 850W’s performance data.
Designed for the Next Generation of GPUs
The COUGAR GST series supports the latest PCIe 5.1 specification: its powerful and stable performance meets the needs of next-generation GPUs, delivering perfect power for next-gen graphics cards. Equipped with a native PCIe 12V-2X6 connector, the 600mm length provides sufficient slack to reduce the risk of faulty connection during PC installation, without the need for a 6+2 pin adaptor.
Notice : Before using the PCIe 12+4pin cable, please visit the GPU manufacturer’s official website to check recommended wattage requirements.
High Performance
Efficiency
The GST series features a highly efficient design that surpasses the 80 Plus Gold standard, helping you save money on your electricity bill.

Perfect Fan Speed to Noise Ratio
Utilizes a 120mm HDB fan, an advanced design that increases airflow concentration. The fan’s curvature has been fine-tuned to reduce vibration under any load. It also features temperature-controlled functionality to maintain low noise levels.


HDB Fan
Compared to other fan bearing types, the HDB fan is considered the best in its class for operating noise and expected lifespan. Fluid dynamics and fluid-based characteristics greatly reduce friction and vibration, resulting in better reliability and quieter operation.



More Stability. Less Noise.
Crafted for quiet operation, COUGAR’s exclusive 120mm HDB fan achieves an ideal equilibrium between efficient cooling and minimal noise. Optimized, grooved fan blades are molded with an integrated stabilizing ring, minimizing flex during rotation and reducing turbulence for an optimal and silent cooling experience.
Refined Regulation. Stable Operation
Includes 105°C Japanese capacitors for standby power to ensure keep providing computer with stable electrical supply.



Performs optimally in 40ºC working temperature environments.
GST’s LLC, DC-DC and Tri-Sense(3.3V, 5V, and 12V) design has been created to provide high-quality outputs, with an extremely tight 3% voltage regulation to deliver a stable operation.

Features
Support PCI Express 5.1 Graphics Cards 12+4 Pin Connector
Connect the 12V-2X6 with true 200% power excursion dynamic outputs.
80 PLUS Gold Certified
Up to 91% efficiency power conversion to cut down your electricity bill.
Durable HDB Fan
Hydro Dynamic Bearing Fan: extended durability and lower noise levels.
Silent Spin
Groundbreaking grooved fan blade design lets you experience noiseless gaming.
Compact PSU Size for All PC Cases
Its 140mm length suits most cases and allows for easy installation
Full Protections with SCP, OCP, OVP, UVP, OPP, OTP
Compatible with The Lastest PC Technology
Created for user with current and next-generation multi-core CPU platforms.
Flawless Operation at 40°C
Powerful performance at 40°C ambient temperature.
Specifications
Model Name | AC Input | DC output | |||||
+3.3V | +5V | +12V | -12V | +5Vsb | Total | ||
GST 650 GMS650 |
AC100-240V~ 50-60Hz 10-5A |
20A | 20A | 54.1A | 0.3A | 3A | 650W |
---|---|---|---|---|---|---|---|
120W | 650W | 3.6W | 15W | ||||
GST 750 GMS750 |
AC100-240V~ 50-60Hz 10-5A |
20A | 20A | 62.5A | 0.3A | 3A | 750W |
120W | 750W | 3.6W | 15W | ||||
GST 850 GMS850 |
AC100-240V~ 50-60Hz 12-6A |
20A | 20A | 70.8A | 0.3A | 3A | 850W |
120W | 850W | 3.6W | 15W |
Connector | Main | CPU | Peripherals | S-ATA | 12V-2X6 | PCI-E |
Pins | 24(20+4) | 8(4+4) 8 | 4 | 5 | 12+4 | 8(6+2) |
GST 650 | 1 | 2 | 3 | 6 | 1 | 4 |
---|---|---|---|---|---|---|
GST 750 | 1 | 2 | 3 | 6 | 1 | 4 |
GST 850 | 1 | 2 | 4 | 8 | 1 | 4 |

Specifications might vary depending on the country or region of sale.
Protection
UVP (Under Voltage Protection)
If the voltages fall below a certain tolerance value on the single lines, the PSU automatically switches off.
OCP (Overcurrent Protection)
If the current on a single line is higher than indicated, the PSU automatically switches off.
SCP (Short-Circuit Protection)
In the case of a short-circuit, this feature prevents damage to the core components of the PSU and its System components.
OVP (Over Voltage Protection)
If the voltages increase above a certain tolerance value on the single lines, the PSU automatically switches off.
OTP (Over Temperature Protection)
If the temperature gets too high, the PSU automatically switches off.
OPP (Over Power Protection)
If the system is oversized and requires more power from the PSU than it can provide, this protection function is activated.
Safety Standards

Packing Data
GST 650 | GST 750 | GST 850 | |||
Product Number (P/N) | 31GH065001P01 | 31GH075001P01 | 31GH085001P01 | ||
EAN CODE | 4710483778209 | 4710483778193 | 4710483778186 | ||
UPC CODE | 192554008103 | 192554008097 | 192554008080 | ||
JAN CODE | 4541995038914 | 4541995037962 | 4541995037955 | ||
Individual W/O Packaging Weight (N.Weight) | 1.99 (Kg) | 2.01 (Kg) | 2.22 (Kg) | ||
Individual Packaging Weight (G.Weight) | 2.79 (Kg) | 2.81 (Kg) | 3.02 (Kg) | ||
Individual Size W/O Packaging (LxWxH) | 140 x 150 x 86 (mm) | ||||
Individual Packaging Size (LxWxH) | 290 x 215 x 105 (mm) |