Do you know the problem? You want to install another 3.5" or 2.5" HDD or SSD in your PC, but you don't have a suitable slot available? Then this practical mounting frame is the solution. It is simply installed in an available 5.25" slot internally, allowing for the installation of an additional 3.5" or 2.5" HDD or SSD. To ensure the drive receives adequate cooling, it is possible to mount a 12 cm fan on the bottom.