HydroO X 550W

FSP Hydro X series power supplies are 80 PLUS Gold certified, unique ventilation hole design and built with premium components, to provide excellent cooling and quiet performance.
  • Unique product ID with stylish side sticker
  • Advanced air-flow design in silent operation
  • Complies with newest ATX12V & EPS12V standards
  • 80PLUS® Gold certified
  • High efficiency ≧ 90%
  • Full Japan-made electrolytic capacitors
  • Powerful single +12V rail design
  • Ribbon cables for the need of enthusiasts and gamers
  • SLI and Crossfire ready
  • Complete protection: OCP, OVP, SCP, OPP, OTP
  • Intel Skylake ready
  • Global safety approved

Hotcore Fan Control Design

Hotcore Fan Control adjusts its speed precisely to provide optimal cooling which contributed to the thermometer to be designed into the hottest transformer and measure the hotcore temperature on the first line.

Lower Power Consumption, Fewer Heat Emission

RDS (on) MOSFET is commonly used in electronics, and selected 2.8 ~ 1.4 mini-ohm grade. Hydro X is designed to use very low RDS (on) MOSFET, 0.85 mini-ohm for 550W/650W and 1.2 mini-ohm for 450W PSU, which is different from others, to reduce power loss and cool down component for reliability.

DC-DC Module Design

Both of +3.3V and +5V DC-DC module combined +12V SR circuit offers supreme efficiency, voltage stability, and high system compatibility especially in cross regulation (unbalance load) mode.


Extremely Tight Voltage Regulation

Custom VR(Variable Resistor) design to control the balanced point of +12V rail to make sure the output voltage regulation is under +/- 1% under any load change.

Eco-Minion IC Inside For Low Standby Power Consumption

The functions of PC is always powered by the +5Vsb rail when the PC is in sleep or idle modes. Eco-Minion Controller can enhance overall performance of +5Vsb and efficiency to reach about 82.5% compared to 75% in general when load is about 1A.

Custom Soft Start Design

The inrush current may hurt PSU when powered on. Hydro X features with custom power guard design to restrain switch-on surge for keeping PSU in safe.

Power Conversion Optimization

Experienced design of shorter circuit among active PFC,LLC and secondary SR stages saves energy during power conversion and optimize EMI solution.




AC Input100-240Vac~  10-5A  50-60Hz
DC Output+3.3V+5V+12V -12V+5Vsb
Max Output Current20A20A45.83A 0.3A2.5A
Max Combined Power120W550W3.6W12.5W
Total Power550W (at 40°C)


 atx cable 24 pinEPS 4 4 pinpcie 6+2 pinhd statmolex2.5 floppy
ATX 244+4 PINPCI-E 6+2SATAMolex


Model HGX550
Rated Output Power 550W
Form Factor ATX12V & EPS12V
80 PLUS Certification Gold
Input Voltage 100V-240V
Input Current 5A
Input Frequency 50-60Hz
PFC Active PFC (>0.9 typical)
Efficiency >90% @ Typical Load
Fan Type 120mm Double ball bearing
Dimensions(L x W x H) 150 x 150 x 86 mm
Weight 2010g
Operation Temp. 0~40°C
2023 By FSP GROUP All rights reseved.
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