Garmin Fleet Updater

http://software.garmin.com/en-US/fleet_updater.html

Built just for fleets, Fleet Updater is the streamlined way to update maps and software on multiple devices at once.

Updating Your Fleet Doesn't Have To Be a Hassle - Fleet Updater can update the maps and software on up to 10 devices at once. Updating your fleet has never been easier.

If you have fleets of device you must have a good fleet of PC

System Requirements
Windows 7 or newer, Microsoft .NET 4 Client Profile (included)
1024 x 768 display, USB port and 1 GB RAM
High speed Internet access (not for use with dial-up, mobile or satellite connections)
USB cable and Fleet, nuvi, zumo or dezl series device
High-quality USB 2.0 hub (optional)

Get Started Today

http://download.garmin.com/omt/fleet/GarminFleetInstaller.exe

Version 2.0.4.0 was actual on date of post issue.

P.S. It is not official info. Link found in SW source as usually...