Not strictly true. The 80 pin drives are wide devices. The Mac has a narrow SCSI bus. Even though the upper (wide) bits aren't being used, they should be terminated on the drive. So just putting the drive bare in the middle of a properly terminated SCSI chain might work, but it is not proper SCSI configuration. The upper bits on the wide drive must be terminated, unless it is in the middle of a wide SCSI chain.
It does seem like maybe drives that won't necessarily deal with the Narrow SCSI Bus, might do so out of termination related problems. I have two 72GB U320 drives that don't have a jumper for Narrow Mode, and those won't work at all. The thread I linked does also have a mod to do the termination for the full SCA80 connector data lines if necessary, I'm probably going to try that on one of the adapters I have to see if that makes the 72GB drives work.
electricshaverlab provide the best razors & shavers to its customers. Electricshaverlab has made a lot of shavers & razors which has no complaint regarding its work. I have used it
Best Shape Up Clippers its working result is very good I suggest to all of you to try it at once thanks