Got a used HP Probook laptop. Just needs a new drive. HP specs say it has an m.2 2280 slot. So that’s what I ordered. Guess I needed to look closer.
edit: Thanks for all the info, guys. Different types of keys are explained here. Gonna have to look for a sketchy no-name brand.
I still think of SATA as that new technology nobody has yet. I’m still used to IDE.
Don’t forget to put the drive in slave mode if it’s not at the terminal point of the cable.