V11 Models
ST4000DM0004-2CV104
ST5000DM003-2FH18L
ST6000DM003-2CY186
ST80000DM004-2CX188
V11 1st 3 Digits of SN
WFN or ZFN - - 2 platters, 4 heads
WCV or ZCV - 3 platters, 6 heads
WF2 or ZF2 - 4 platters, 7 heads
WCT or ZCT - 4 platters, 8 heads
It is more important to source the donor based on the SN rather than the capacity. We have 3 6TB models with 3 different headmaps and 2 different platter counts, for reference.