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iStarUSA CP-02040 20+4Pin 400W Single 2U Switching Server Power Supply - OEM

  • 400W Single
  • 20+4Pin
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Learn more about the iStarUSA Inc. CP-02040




Maximum Power
Main Connector
Output Current
+3.3V@20A, +5V@30A, +12V@30A, -12V@1A, -5V@0.5A, +5Vsb@3A
Input Voltage
100 - 240 V
Input Frequency Range
50/60 Hz
Hold-up Time
16ms Hold Up Time
Over Power Protection
Over Voltage Protection
Short Circuits Protection


High Efficiency and Reliability
Active PFC

Manufacturer Warranty

1 year limited
1 year limited

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the iStarUSA Inc. CP-02040

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  • Tenetics L.
  • 1/9/2011 8:33:44 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week

3 out of 5 eggsWorks, but loud

Pros: Well constructed, low cost, easy to install. Very responsive technical support.

Cons: Excessive fan noise. The single internal Adda AD0612HB-A70GL fan is 36 dB/A and the PS construction makes it even louder due to high inlet flow noise and chassis acoustics...this is one of the loudest supplies I've ever heard.

Other Thoughts: I replaced the fan with an IPC-606010 (30dB/A) and it is much quieter - note: doing this voids the warranty and you should not even open the power supply unless you really know what you are doing (are handy with a soldering iron and able to safely work on high-voltage AC circuits). iStar should note the noise level on the datasheet because it is so unusually high and/or consider using a quieter fan...until they do so I'm unlikely to purchase an iStar power supply again.

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