//Edit: It's a SAS drive. thanks for the help :))
I bought two of these a long time ago, and I recently tried to connect them to a SATA III connector without luck. The size seems to match up, but the block between the two pin segments seems to block it from connecting with SATA III.
Can you help me figure out what kind of adaptor I need ? :))
No. SAS is a different protocol and requires a different host controller. SAS controllers can typically handle SATA drives, but not the other way around.
If this is for a server or desktop machine, you could install a PCIe SAS HBA.