Disclaimer: Displayed parts and accessories may not be included in the actual product package.


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)



Model RS550-ACAAB1-US; RS-550-ACAA-B1
Type lntel Form Factor ATX 12V V2.31
PFC Active PFC (>0.9 typical)
Dimension 150 x 140 x 86mm / 5.9 x 5.5 x 3.4 inch
Input Voltage 90-264Vac (Full range)
Input Frequency Range 47-63Hz
Fan 120mm intelligent fan
Efficiency 85% @ Typical Load
MTBF >100,000 Hours
Protection OVP / UVP / OCP / OPP / SCP / OTP
Regulatory CE, UL, FCC, CCC, TUV, C-tick, KCC, CSA, BSMI, GOST
Connector MB 20+4 Pin x 1
CPU12V 4+4 Pin x 1
PCI-e 6+2 Pin x 2
SATA x 6
4Pin Peripheral x 3
4Pin Floppy x 1
USB Charger cable x 1
Warranty 5 years
UPC Code 884102021237