I've collected a nice box of hard drives over the past ~25 years that
I've ashamedly never dumped.
One from a childhood PC is called a Quantum Bigfoot TX -- it's 5.25"
wide and half-height...kind of unique and I never saw another like it (although I have another 5.25" HDD in my IBM 5155).
Dumped it, and Windows 98 started right up to my old desktop. :)