EMVANV Stainless Steel Hard Drive Cage, 5.25inch to 5X 3.5 Hard Drive Cage with Fan Space Hard Drive Cage Adapter Rack Bracket(Silver)

Build quality is alright. It's not flimsy by any means.I'd be careful with the plastic retainers for 3.5" slot they may break if you're not carefulI used 2.5" to 3.5" trays (ordered separately) and mounting hardware from this kit for my U.2 SSDsI did hear click when I inserted the tray into the bays of the cage.A 120mm fan can be mounted on front of the cage for cooling.Test:I had the U.2 drives stacked on top of each other with a burst of air from front intake fans.The drives still got pretty hot. Below were the temps,/dev/nvme9n1 57 C/dev/nvme10n1 61 C/dev/nvme11n1 64 C/dev/nvme17n1 56 CAfter the cage with a Delta 120mm x 25mm fan, the temps dropped by 10C/dev/nvme9n1 48 C/dev/nvme10n1 50 C/dev/nvme11n1 49 C/dev/nvme17n1 36 CRecommended.

Just assembled as pictured, very easy. Hard drives seem to fit perfectly with just enough gap to let air pass over the drives. I need to get 8 drives into a Corsair 200R and this made that possible without spending $100-200 on a hot swap bay.

extremely small screws, hard to put together, the included screwdriver is worthless, can not magnetize it, too small. UPDATE.....reversed top and bottom plates now works as it should. Was initially following the arrows stamped on side plate and top and bottom plates to match which resulted in not being able to mount fan cage on correct end, them arrows now contradict yet is positioned right to function as it should. Criticism of the screwdriver which cannot be magnetized and tiny screws stands. Good value for what it is

Inaccurate description

Worked perfectly to add 3.5 bays to my nas case that has alot of 5.25 bays