The AX-7 comes with all parts you'll need except for the fan. Your typical: screws to attach a fan and a thermal pad. But what's not typical is the included rubber bushings. Those are for placing between the fan and heatsink to help minimize noise. "Help minimize noise". Now how many heatsink makers ever think to include anything to help fight off noise? Seems their main concern is to include the loudest lawnmower err fan they can to make their heatsink perform even better. But how many of us can tolerate that racket for long. Anyway the bushings aren't a big deal but it is a thoughtful touch.

Why a copper base or "heat spreader" and an aluminum heatsink? We all know copper obsorbs heat better and quicker than aluminum but it also retains heat longer than aluminum, hence why most all copper heatsink makers suggest and always come with a fast lawnmower-loud fan to get the best performance. You need the air flow to help dissipate the heat. Aluminum in turn releases heat quicker so the theory is let the copper heat spreader absorb the heat(which it does do best) then pass it on to the aluminum heatsink for faster heat dissipation. With help from a fan of course.

Ever notice most cpu cooler makers usually come with a one-prong clip? I never could finger that out. Why? To save a few measly pennies I suppose. Many heatsinks of course do not need a 3 prong clip but it's very nice to have a 3-prong just in case your motherboard catches are partially scrapped off. And how many of you has that hapened to? C'mon raise your hands, don't be ashamed. It happens to the best of us (not me of course ). Some heatsinks can be a pain to remove so it's sometimes difficult to avoid scrapping off part of a catch. Another reason is to help provide stability for that usually heavy heatsink on that flimsy cpu. Like when you transport the system somewhere. Problem solved here as you can see in the picture below, the AX-7 comes with a 3-prong clip. Another good point is the clip is attached to the bottom of the heatsink to help prevent it from going too high when attaching the heatsink. Just makes the intall a bit easier.