SCSI lead problem

I just bought what I thought would be the correct SCSI lead off a guy on ebay but it's way too big to fit to my MPC. I bought an SCSI CABLE HD50 MALE to DB25 MALE. So did I buy the wrong lead or was I sold the wrong lead? The lead I was sent fits into the printer port on my PC, the MPC looks a lot smaller then this. Have I been ripped off?

man i had the hardest time findin that damn cord, i finally got it from my boy but i knocked a couple of the pins off and its mad fragile, if you find somewhere to get it hola at me at [email protected],PLEASE. oh yeah, you got ripped off, thats a printer cable.