These are mounts for MikroTik Switches CSS610-8G-2S+ and CRS305-1G-4S+. The rack ears for the CSS610-8G-2S+ are the same as those for the CRS310-1G-5S-4S+ in my previous mod. The other parts seen in the photos are from NatalieT's project.
Required hardware:
The author remixed this model.
Added custom mounts for MikroTik Switches CSS610-8G-2S+ and CRS305-1G-4S+