Pros: does not trigger the heat death of the universe

Cons: completely unusable

Overall Review: I ordered 3 of these to install in a single machine to replace the 4 in 3 cages I was using. When they arrived I installed them and immediately my stat controller started having problems detecting the disks. Assuming I had damaged my controller, motherboard, or the cables, I started swapping out parts. Ultimately I attempted to make these work with 2 unique motherboards, 7 unique sata controllers, 6 unique controller firmware versions, and 5 unique controller chipsets. Occasionally a controller would see 1 or two of the drives in the cage, but I was never able to get any controller to see all of the disks any of the 3 cages I had purchased. I am in the process of RMAing this right now. In total I have lost about 48 hours of time ( $348 at the federal minimum wage) trying to make these work and ~ $30 in shipping fees. Avoid these like the plauge!!!!!