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Cooler Master GX 550 Watts PSU

  • 90 - 264 Vac Input
  • 1 x 12V Power Rail
  • 550 W Power Output
  • ATX 12V v2.3


2 Years Cooler Master India Warranty and Free Transit Insurance.
MRP: Rs. 6,899
Rs. 4,465 35% OFF
Selling Price

Sold by

eHardwareStation 4.1 / 5
78% positive feedback (2,265 ratings)
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Key Features of Cooler Master GX 550 Watts PSU

  • 90 - 264 Vac Input Voltage
  • 550 W Power Output
  • 1 x 12V Power Rail
  • ATX 12V v2.3
  • 100000 hours MTBF
  • 85 % Efficiency

Specifications of Cooler Master GX 550 Watts PSU

In The Box
Sales Package PSU and Respective Screws
Brand Cooler Master
Processor Support Intel
ATX & EPS Version ATX 12V v2.3
Series GX
Model Name GX 550W
Power Rail 1 x 12V Power Rails
Part Number RS-550-ACAA-D3
Power Output 550 W with Maximum Power Output of660 W
Power Factor Correction (PFC) Active PFC with Value of 0.99
Input Voltage 1 90 - 264 V
Hold Up Time 17 ms
Power Good Signal 100 ~ 500 ms
Efficiency 85 %
Mean time between failures (MTBF) 1,00,000 hr
Input Frequency 47 - 63 Hz
Input Current 5 -7 A
Width x Height x Depth 150 x 140 x 86 mm
Domestic Term 2 Years
Covered in Warranty Any Problem which has manufacturing defect will be warrantied
Service Type Carry In
Warranty Summary Cooler Master provides domestic warranty including only manufacturing defects and services, but not defects due to mishandling
Warranty Type Limited
Not Covered in Warranty Cooler Master does not cover any accidental or physical damage
PCI-e 2 PCI-e 6+2 pin
SATA 6 SATA Cables
Floppy 1 Floppy Connector with 4 pins
Motherboard 1 Motherboard Connector with 20 + 4 pin
CPU 1 CPU Connector with 4 + 4 pin
Peripheral 3 Peripheral Connector with 4 pins
Maximum Current
Current at DC Output of +3.3 V 24 A
Current at DC Output of +5 V sb 2.5 A
Current at DC Output of -12 V 0.3 A
Current at DC Output of +5 V 24 A
Current at DC Output of +12 V 44 A
Temperature 0 to 40 °C (Operating Temperature)
Protection Over Voltage Protection (OVP), Under Voltage Protection (UVP), Over Power Protection (OPP), Over Temperature Protection (OTP), Short Circuit Protection (SCP)
Safety Standards TUV, CE, UL, FCC, BSMI, GOST, C-Tick, CCC, KCC
Certification 80 Plus
Fan Type 1 x 120 mm
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Reviews of Cooler Master GX 550 Watts PSU


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Based on 16  ratings

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Steve Bayer

Apr 26, 2013

Better than a default PSU

I ordered a Cooler Master 500+ Watt PSU from a shop that builds PCs to power a Radeon 7850 graphics card. The GX 550 is what I received.

I had previously used the PSU that came with an iball case. When the power went out and the apartment switched to generator power, the iball's PSU caused the generator power to become unstable and the power to the apartment switched on and off. After installing the CM GX550, I can now use my PC while under generator power without issue.

- Doesn't have negative effects while under generator power
- It is quiet while running
- Should

Navi Singh

Apr 9, 2013

First to review

High Quality Power Supply Unit

My old SMPS stopped working when I got this as an upgrade. It has got a big 120mm suction fan (from inside case to outside) but it is so silent it is very hard to tell if it is running. Startup is smooth and all Power Connector Cables though bulky, are well managed. It has a very high quality feel and finish with matt black, looks very good. It is 80+ Certified so it is equivalent to about 700 watts Non 80+ Units since there output is fluctuating whereas this will work at gauranteed 80+ or above efficiency at all given input power levels and demanded output power levels. Will easily handle a g
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