I am getting my iMac in the mail today and I am moving off of a Hackintosh (just turning it into a Gaming PC purely now). I would like to use the 3tb HDD that was in the Hackintosh as a Time Machine Backup and was looking into different enclosures. I figured that my backup didn't need to be lightning fast since it's just purely going to be a time machine drive so would it be worth it to buy a cheap $20 USB 2.0 Enclosure for the 3.5" Sata Drive? Or should I get something that is USB 3.0 compatible? Thank you.