Used, pulled from a working hard disk.
Listing is for a hard drive circuit board (PCB, Logic board) ONLY. No hard drive is included!
Chipped transistors, discoloration doesn't affect functionality.
If it doesn't work for you, it's because firmware must be transferred or you bought a wrong board or there is another / additional issue with your hard drive.
Most of the hard drive circuit boards contain unique information in ROM "memory" chip, mandatory for proper hard drive operation.