//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 ? :))
Looks like that's actually "SATA Express," which has lanes for both PCI and SATA - if you look at the other side of the connector (which you should have already shared!) you'll see even more contacts. You can get either a PCI or SATA adapter in order to use the drive.
Edit: Probably SAS as others said. It uses the exact same connector, which is why I made that guess.