No, I am not a charity. I'm just a retired, senior who has a friend, who has a friend, who passes along equipment he no longer needs or wants. So, I have no idea who did the formatting. This "M" drive just popped up when I first plugged it into my computer. The fellow who passes along the equipment has lots of money and uses it buy the newest, baddest thing when released, so I'm sure he has one or more NAS units.
I just assumed I was dealing with an SSD because it looks about the right size... 4 1/2 x 3 x 3/4. And it does run warm. And I just now heard it spinning when I held it to my ear.
Sorry for the improper terminology, I'm just trying to cope with 2023 tech.
If the drive is as you suspect, is there any reason I cannot use it as an external storage drive?