At least in the context and time frame I was referencing, a vast and overwhelming majority of laptops only had a single 2.5 "inch" drive slot. Also, I'm not aw

At least in the context and time frame I was referencing, a vast and overwhelming majority of laptops only had a single 2.5 "inch" drive slot. Also, I'm not aware (offhand) of any M.2 form factor spinning rust, which brings us more to the topic of types of flash memory.