[Magnetar]

I'm looking into getting a SCSI controller card to retrieve some data off an old 50pin SCSI Mac HDD (160MB).
I don't have a Mac, but I do have linux (and windows).

I'm not sure which controller card I should get.
The two I'm trying to choose between that "I think should work" are:
Adaptec AHA-2930CU PCI SCSI card
Adaptec AHA-2940/2940U SCSI card

My questions are:
Will these cards work?
What the difference between the two?
Which one should I get?
How will I be able to retrieve the old Mac data (hope linux will save the day)?


Thank you kindly for any assistance you provide.