This mount is designed to adapt a standard 2.5 inch SATA SSD to the bottom hard drive bay (B) in a Power Mac G5 Desktop Computer. 

All you need to install this is 4 M3 screws to mount the SSD to the adapter, once the drive is securely attached, you can just slide it into drive bay B and lower the retaining lever, securely mounting the SSD into the Power Mac.

NOTE, this design will only work in the lower drive bay labeled B, it WILL NOT work in the upper drive bay labeled A.