Re: ML310E gen8 V2 - Four bay LFF drive cage - I see two different models

Hi, 

In official document HPE Quickspcs the cage compatible are :

https://h20195.www2.hpe.com/v2/Getdocument.aspx?docname=c04123183

HPE Unique Options HP 4U 4 Large Form Factor Hot Plug Hard Drive Backplane Kit
NOTE: The LFF Kitis a backplane kit designed for going from NHP LFF to hotplug
LFF.
674839-B21

HP 4U 8 Small Form Factor Hot Plug Hard Drive Cage Kit
NOTE: The SFF Kitis the cage plus backplane and designed to convert from any
LFF configuration to SFF.
674841-B21

How wiil to use LFF the kit is 674839-B21 

In this KIt come to this parts : 

http://partsurfer.hpe.com/Search.aspx?SearchText=674839-B21

Cage for this Equipment :

HP ProLiant ML350e Gen8 V2
HPE Gen9 ProLiant ML30 range

Are Not compatible. 

Regards.