I-STAR PS2 550W 1+1 Hot-Swap Redundant Power Supply

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SKU: IS-550R8P Category:




  • RoHS Compliance
  • Active PFC Full Range AC input
  • Over Power/Voltage/Short Circuits Protection
  • Hot-Swappable PSU module
  • Variable Fan Speed Control
  • 17ms Hold Up Time
  • Quick Latch Module Release
  • 3 Status LEDs
  • Performance Air-cooling Vent
  • AC Input with Retaining Clamp



iStarUSA dual AC input Mini Redundant Power Supply IS-550R8P. It offers your server and workstation zero down time with full 550w power redundancy. Active PFC, temperature control fan, hot swappable power modules and load sharing function provide ultimate precision power and safety protection for all electronic equipment. Standard PS2 form factor fits most ATX or 4U chassis. A good start for your mission critical system integrations.



Model Number IS-550R8P
RoHS Compliance Version Yes
Efficiency 75%
Noise Level 27 ~ 37 dB
Output Power 550W
AC Input 90V to 264V Full Range 47Hz ~ 63Hz
Main Connector 24 Pin
12V Connectors 8-Pin / 4-Pin
Dimensions (W x H x D) 150 x 86 x 199 mm


Output Table

Voltage +3.3V +5V +12V -12V +5Vsb
Max Load 24A 30A 41A
Min Load
Regulation ±0% ±5% ±5% ±0% ±5%
Ripple(mV) 50 50 120 120 50


Additional information

Weight 11.00 lbs

150 x 86 x 199 mm