Hello,  The PS100E, Was the chassis w/250GB SATA drives in it.    However, of more concern is which power supply do they have now.  They are known as "Type 1" and "Type 2"   The are NOT interchangeable, so they cannot be mixed, both have to be Type 1 or Type 2.  This website, has images of the two different types.  The vent openings are very different and make it easy to determine which is which.  The "honeycomb" style vent is the older Type 1.  [URL] If for some reason they have the older Type 1, I would suggest the upgrade both to Type 2.  Which CANNOT be done live.  Shutdown array first, and power off both supplies.  Then replace them and power up.  Odd are that they have Type 2's.   Regards,  Don  
Hi Gentlemen, A customer is asking us to find a power supply for a PS100, Chassis Type 1403. When I search the internet for information, I find a lot for PS100E. Are they different models or is it the same stuff? Thanks a lot, have a good day, JC
Equallogic PS100 vs PS100E