I was looking for a framework for a single SSD, I can accommodate the Tower. In retrospect, it was the perfect purchase for me. The frame 8 screws were (2 sets each of 4 screws in different sizes). One thing is for attaching the SSD under (is properly secured!), The others are theoretically to be installed in the tower. But I have quick-release fasteners and since they fit perfectly, I could save me this. From me there is a clear recommendation, especially at this price including shipping ...