Forums | MacLife

There are USB to SCSI and USB to Serial adapters that you can use.  For about the same price, you can buy a USB PCI card that installs nicely in your machine, and that will most likely be more compatible.

USB drivers are available for 8.6 on Apple's website, I believe.  Actually, before you buy anything, confirm that there are drivers for 8.6  I'm 99% sure that there are, but you never know, I've been wrong before... a lot.

Cheers m8,

I'm not very up on this side of things as you might have guessed but would the card just slot into the ports at the back or will I have to take the casing off and install it another way (assuming the drivers work etc.)?

Thanks again. 

You'll need to open the case if you want install a PCI card.  If yours is the Tower model, it's a snap.  If it's the desktop model, then it's a little trickier, but nothing so hard my Dad couldn't do it.   Anyway, you open up the case, and you'll see your empty PCI slots, just touch something metal like the outer metal casing around the PCI slots (*not* the motherboard) to discharge any static electricity you may be holding and plug the card in.  You'll need to remove one screw to remove a metal plate that covers the PCI slot, and you'll more than likely need to reattach that screw with a USB card in.  It's really, really easy, just like installing RAM.  But if you've never done it, it can be frightening to open up a computer.  Either just do it (did I say it's easy?) or ask a friend that has done it to help. 

As long as you unplug the computer first, discharge and static, and don't leave loose metal debris inside the computer, and don't force anything, you should be fine.