This is a 600GB/10k Small Form Factor Drive upgrade for the VSP G1000 series. This is interchangeable with 5552786-A, but the P is the RoHS version of the drive.

They may be used either directly into the integrated drive tray of the G200, or in any of the other G400/600/800/1000 units by using the Small Form Factor Expansion frame, the DKC-F810i-DBSC.  Adding these to any system gives that system the raw storage capacity of an additional 600GB

Feature Code is DKC=F810i-600JCM

Part Number is = #5552786-P