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Cooler Master GXII RS550 550W ATX Black power supply unit
Cooler Master GXII RS550 550W ATX Black power supply unit:
Cooler Master GXII RS550 550W ATX Black power supply unit:

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Cooler Master GXII RS550 550W ATX Black power supply unit

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Built for quality and consistency GXII PSUs utilizes a single powerful 12V rail to deliver clean and efficient power to systems. This high power efficiency is set to deliver ~85% power efficiency and is held to the strict standards of 80PLUS Bronze. These PSUs deliver high amperage to power high-end components. All GXII PSUs are equipped with a HDB 120mm fan that offers a greatly increased fan lifespan and low noise during use. This increases overall fan lifespan and protects critical power supply components. Leaving nothing to chance, this protection is strengthened by a comprehensive set of world-class safety measures.

- Nonstop USB power - USB charging even when the PC is off
- Single +12V rail for superior load balancing and VGA compatibility
- High efficiency that meets 80 Plus Bronze
- Super silent & long lifespan HDB fan
- Dual filter from electromagnetic interference
- Huge bulk capacitor for hold-up times of >16ms when 80% loaded
- Multiple Protection Design (OVP/UVP/OCP/OPP/SCP/OTP)
- High reliability (MTBF > 100,000 hrs)


Brand: Cooler Master
Release date: October 2013
Categories: Computers > Components > Power Supplies
LSN: XWK-39P-9S5-7
Colour: Black
Model Number: RS550-ACAAB1-US

Cooling System

Fan Diameter: 12


CPU Power Connector (4+4 pin): Yes
Molex Connectors: 3
Motherboard Connector: 20+4 pin ATX
PCI-Express Connector: Yes
SATA Power Connector: 6


AC Input Voltage: 100 - 240 V
Input Current: 9 - 4.5 A


80 Plus Grade: 80 PLUS Bronze
ATX Version: 2.31
PFC Type: Active
Protection: Over current • Over power • Over voltage • Short circuit • Under voltage

Physical Specification

Item Depth (mm): 86
Item Height (mm): 140
Item Width (mm): 150
Mean time between failures (MTBF): 100000 h


Certifications: CE • UL • FCC • CCC • TUV • C-tick • KCC • CSA • BSMI • GOST

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