Initially it was supposed to be very simple since it is a 3.5 converter "to 2.5". Plus: hardware is provided. The BIG least when the SSD is set, it is difficult to place all in slot 3.5 "(too large) and tower side mounting holes match NOTHING! ! ! At best we can only place one screw on each side! I have used other converters, easier to install and do fit PERFECTLY. Finally, it will be my last purchase of this product.