My G5 would not boot after years of good service. I was ready to retire it, but hated to lose the hard drives inside. I was pretty sure all was backed up but wanted to be sure.
Your ifixit kit arrived quickly and worked exactly as advertised to rescue both hard drives. Now I have two spare drives for non-critical use. I am thrilled!
I was puzzled at first about fitting the right connector to the drive because there is more than one in the box. Take your time and think it through: power supply to drive to USB output.