It came with 3 sets of (4) screws of which I utilized 2 of the 3.(1 for adapter<->case, 1 for ssd<->adapter).Cons:The material is a bit thin, and thus not overly strong.

It's a bit tricky to figure out which way to put the drive in at first - do a dry run before tightening down all the screws.

It was a little bit difficult to get the screws into the bottom drive though.

Only reason for 4 stars is I had to pry the 3.5" tabs a bit to get the SSD to fit.

the bottom one is a bit hard to install though because sides get in the way of the screwdriver, i recommend using a magnetic screw driver.

After a bit of monkeying around I was able to mount the SSD into the bracket, but it wouldn't kill Corsair to put a 3'x5' piece of paper with a picture of

Only 4 stars because the screws are a bit awkward to get in with the way its designed.

will fit two but mounting the screws a bit difficult as access on bottom unit is limited

This was a bit tough to rate

This makes mounting it with those plastic rails in some cases a bit annoying

The only thing that I have to say that could be construed as negative is that it hangs out a bit from the enclosure that a normal 3.5" hard drive sits in.