Download of M3 Drive Mounter 2.2 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. M3 Drive Mounter for Mac lies within System Tools, more precisely File Managers. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this software for Mac is M3 Data Recovery Software.
From the developer:
M3 Drive Mounter provides an easy-to-use way to manage network drive and external drive, mount/unmount network drive and external drive, eject external drive from the menu bar with a single click. Get notified when network drive is connected, available, disconnected or an external drive is mounted, unmounted, remounted or unplugged safely.
You may want to check out more software for Mac, such as Drive Mounter or iPhone Mounter, which might be related to M3 Drive Mounter.
General
Backup & Restore