thanks. is this the SAS3008 mezz card that would fit:
Quanta QS-3008-8i-IR-V2 QS 3008 8 Port 12Gbps Storage Mezz Card LSI SAS3008 | eBay
And where can i find the bracket or what's the bracket P/N? (if you know..)
Yeah, I think that one would work. The cards are the same between the 1U and 2U (and other models like the D51PC), but all the brackets are different. I was going to pull the card and bracket from my 1U until I saw the part listings in the FRU Part List in the download section (QuantaGrid D51B | 2U Rackmount Server | QCT.io)