HP MS-4365 SSD PCIe to M.2 Controller Specs?

[BoMc]

I'm trying to find information/specs about the HP MS-4365 SSD PCIe to M.2 Controller.  I would like to explore putting one in my Z620 workstation.  I found a couple of older posts that mention this controller, but they lead to dead links.  The cards seem to be readily available.  What M2 modules can they use?  Which format?  Memory limitations?  Appreciate any information you can provide.  Thanks. 

[Brian1965 · Accepted solution]

Manufacturer：HP 

Part Number：822947-002  

Description：742006-005 MS-4365 Kit Z Turrbo G2 SSD M.2 to PCIe Adapter - NO-SSD

•Standard and Low Profile Bracket w/ Heatsink

•Compatible System Z440 / Z640 / Z840

•PCIe support interface: X16/X8/X4

•Compatible with SSD M.2 size: 22*80mm / 22*60mm / 22*42mm

The HP Z620 can natively boot from the older type AHCI M.2 SSD's, (SM951, etc.), so you can use it as an OS drive straight out of the box. By default, NVMe M.2 drives can only be used as data drives, unless your willing to go through the effort of setting up a USB bootloader, bypassing this restriction. More information on that can be found on the forum.

There is no real limit in terms of the size (capacity) of the M.2 drive you can install, and good quality, third party PCIe adapter cards work fine, e.g. ASUS Hyper X4 Mini, etc. I have a SM951 AHCI M.2 drive as my OS drive, and the 970 EVO range appears to be the popular NVMe drive used for rapid storage. These newer NVMe drives are also considerably faster than the older AHCI drives. e.g. SM951 ~2500Mbps READ, 970 EVO ~3500Mbps READ. 

You CANNOT use PCIe adapter cards that support multiple M.2 cards, the Z620 will only see 1st M.2 card. The motherboard and BIOS must support bifurcation, (i.e. splitting the X16 PCIe slot lanes into 4x X4 PCIe lanes), which the Z620 does not, although I believe the Zx40 series does.

Regarding your initial question, just search for HP Z Turbo G2 drive for details.