KOOBOOK 2Pcs 5.25" to 3.5" 2.5" SSD HDD Tray Caddy Case Adapter Hard Disk Drive Bays Holder Cooling Fan Mounting Bracket for PC

Worked as expected. Very universal for different drive sizes and types. I would buy again but it was a two pack and I don't need them very often. Far better than having a drive short out because it's not mounted properly.

I built a NAS for unraid using a Dell 3620 tower. Mount is very sturdy. I used the black screws to mount the HDD. I reused the silver screws shown in the photos that came with the PC empty slot filler and the DVD rom drive and boy I tell you it fit perfectly in the holes, you just have to choose the correct holes by inserting it, also I was able to reuse the purple plastic lock (see photo) because I reused these screws. One other review said they had a hard time with the same model PC but it took me only a few minutes to install. Hope this helps someone looking to use the same model PC.

It's OK... They do work, but are cheaply made. The get the job done, but I would have preferred a more rigid plastic.

Got these when I wanted to run a NAS in my old case with only 2 hdd slots. I use these on the unused fan slots and it worked very well.

I had several older 3.5" hard disks I needed to mount in 5.25" drive bays due to connector clearances. These are much easier to mount a drive to than the adapters that are two metal brackets. They are quite sturdy and have no flex whatsoever. If you are using these adapter in a case that has locking devices for 5.25" bays I would recommend either using the included screws on the opposite side of the case or removing the locking device to prevent the adapter from moving around. Screws are included to: - Mount the adapters to the case - Fans to the adapter - 2.5" hard disks to the adapter (very long screws given the adapter's thickness) No screws are included to mount 3.5" hard disks. Given the 3.5" drives are probably mounted usnig the correct screws already those can be used with the adapter.

These have a lot of screw holes in different positions for different setups. At first it was a little bit difficult to determine which where the "standard" screw holes to use but I eventually got it to work. Even though they are plastic these are not flimsy and hold really well.

These drive bay adapters do exactly as they claim. The quality is really nice - they fit perfectly and are very easy to install. They also come with a big bag of screws which is an added bonus.

With this adapter the smaller drive is designed to mount 90 deg from the orientation of the original 5.25" drive I was trying to replace. This made it impossible to connect the drive cable to the 3.5" drive inside the case of the HP AIO desktop I was working with. This made the adapter unusable for me.

Wanted this to work, but doesn't support 3.5" drives without an extra centre screw hole for mounting. Given how flexible this mount is, it would have been simple to allow for this, but no.