Hitachi 4GB Compact Flash micro hard (photo) drive .
(CF+) sometimes called a click drive, when introduced around early 2000's the thinest and smallest hard drive.
I last used this HDD in my 14MP Kodak DSLR in 2006. It worked then and presumably works now though that is not guaranteed. I could not test it in the Kodak, long gone. I tried to test it in my Canon 5Ds only to find it is too thick to fit in it's CF slot. Consequently it probably won't fit a contemporary camera that uses a CF memory card. The drive is in it's original case and may or not be formatted. Please note, it is offered as-is, as described and can't be returned.