Yeah, you're right. It doesn't make much sense as to why the SD-SCSI devices are so expensive. I probably could bodge a cable that can use an SD card slot to a SCSI cable.
It's not worth talking about anymore. I had opened my Mac SE, and as I was working on removing the logic board, part of the tube broke. I would be eternally grateful if anyone happens to have a parts Mac.
@rickrob, I already tried that. That was the first thing I did. Congrats on being the first person to say the simplest way to fix this problem.
"If you cannot explain something simply, then you do not know about it enough." --Albert Einstien.
So my Macintosh SE's hard disk was working fine until a floppy disk got stuck in the drive. Now, the hard drive starts spinning until the Happy Mac passes. Does anybody know why the hard disk stops trying to read when it tries to read the floppy disk?
P.S. The floppy disk is a copy of MacDraw.
Thanks to everyone! @mikes-macs, I have already tested the whole system and the hard disk works (thankfully), and yeah, I've found a T-15 screwdriver that is extra long for cases like Mac cases.