why not use the cable that is already in there. this would, probably, be the 40 strand flat cable.
However, when you purchase the replacement drive, it may well come with the 80 strand cable which usually gives better reliablity.
If it does, use it, if not, buy one.
You have not said whether you are adding this drive or replacing the original
I am upgrading my BW G3 M5183 with a Parallel 3.5 ATA/IDE Hard Drive. Which type of parallel ribbon cable (they are flat and usually grey) can I use to connect the hard drive to the machine? Will any of them work?