COUGAR STX550 STX650 STX750
Super Silence & Superior Reliability
- Extremely High Efficiency
- Compatible with The Latest PC-technology
- Support Multi-GPU Technology
- Ultra-quiet & Temperature-controlled 120mm Fan
- Integrated Air Inlet Design
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Categories: Power Supply, COUGAR
Tag: Power Supply
Features
80-PLUS®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.
Massive Single +12V DC Output
Extreme stability for powerful graphic systems.

Fan Speed Fine-Tuning
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.

Specifications
|
Model Name |
AC input |
DC Output |
|||||
|
+3.3V |
+5V | +12V | -12V | +5Vsb |
Total |
||
|
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 550 |
1 | 1 | 3 | 6 | 2 |
| STX 650 | 1 | 1 | 3 | 6 |
2 |
| STX 750 | 1 | 1 | 3 | 6 |
4 |
| Connectors | 550W | 650W | 750W | |
| Main | ![]() |
1X | 1X | 1X |
| CPU | ![]() |
1X | 1X | 1X |
| PCI-E | ![]() |
1X | 1X | 2X |
| PCI-E | ![]() |
– | – | – |
| HDD+FDD | ![]() |
1X | 1X | – |
| HDD | ![]() |
– | – | 1X |
| SATA | ![]() |
– | – | – |
| SATA | ![]() |
2X | 2X | – |
| SATA | ![]() |
– | – | 2X |
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