Quick remix to add 2 clearance slots for securely mounting an SSD or HDD to the mode while using Nehbleh's excellent bracket and a top accessible clip. That way tou don't need the screw to be installed reom underneath. Otherwise your disk is, as EEVBlog Dave would say, "a little bit how-ya-doin' just flappin' in the breeze."

Designed to also be used with screws or Terraonion's clips found here and as pictured: https://www.thingiverse.com/thing:4626891/files