HDD Caddy for a Cooler Master Case.
I'm not sure of the model number but the width between the oval rails is about 12.7mm (1/2").
Will suit 3.5" or 2.5" with base mounting holes.
HDD's can be mounted rear or forward facing.
2017-05-10 Solidworks files added, STL rotated
2019-08-31 Side hole version added