750 Watt Cougar STX750 Series Power Supply - Computer Alliance
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750 Watt Cougar STX750 Series Power Supply

Web ID: 18405

750W, 80+ White Certification, Upto 85% efficiency, ultra quiet & temperature controlled 120mm fan, APFC, Dynamic Dual-12V, 4 x 8 pin (6+2), 6 x SATA, 4 x molex, 1 x 20+4P, 1 x 8pin (4+4)
Manufacturer PN: STX750
GTIN: 871520007899
Warranty: 1 Year
Manufacturer Website

Awards & Reviews



The Right Efficiency
With STX, your computer’s power supply will reach a high level of efficiency. 
In doing so, it will keep power consumption at bay at a reasonable cost.

COUGAR STX - 80-PLUS®Efficiency

Fan Speed Fine-Tuning

The Right Fan Speed
COUGAR STX’s fan will automatically adjust its speed according to the PSU’s temperature. 
This will ensure that no matter what you are doing, the fan noise will always be minimized.

COUGAR STX - Fan Speed Fine-Tuning


Model Name AC input DC output
+3.3V +5V +12V -12V +5Vsb Total
STX 350  200-240V~
21A 15A 28A 0.3A 3A 350W
103W 336W
STX 450  24A 15A 35A 0.3A 3A 450W
120W 420W
STX 550 200-240V~
24A 20A 43A 0.3A 3A 550W
120W 516W
STX 650 24A 20A 52A 0.3A 3A 650W
130W 624W
STX 750 24A 20A 60A 0.3A 3A 750W
150W 720W
Connector Main CPU Peripheral S-ATA PCI-E
Pin 24(20+4) Pins 8(4+4) Pins 4 Pins 5 Pins 8(6+2) Pins
STX 350 1 1 3 4 1
STX 450 1 1 3 4 2
STX 550 1 1 3 6 2
STX 650 1 1 3 6 2
STX 750 1 1 3 6 4
COUGAR STX - Specifications


  • UVP (Undervoltage protection)If the voltages fall below a certain tolerance value on the single lines, the PSU automatically switches off.
  • OVP (Over Voltage Protection)If the voltages increase above a certain tolerance value on the single lines, 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.
  • OPP (Over Load Protection)If the system is oversized and requires more power from the PSU than it can perform, this protection function is activated.
  • OCP (Over Current Protection)If the current on a single line is higher than indicated, the PSU automatically switches off.


160 x 140 x 86(mm) / 6.30x 5.51 x 3.39(inch) 

COUGAR STX - Dimension
Safety Certification
COUGAR STX - Safety Certification