You can use GoodSync2Go to easily keep two or more non-connected computers in sync using a USB flash or other portable drive.
GoodSync2Go runs from the portable device itself, not on the host computer. Therefore you can install and run GoodSync2Go even when you don't have administrator rights or installing software is prohibited on the host computer.
You only need one license for GoodSync2Go, so you can buy one GoodSync2Go license and keep several computers in sync. Please note that GoodSync2Go will not run on a Windows Server Operating System, as this requires a GoodSync Server license.
Just like GoodSync, GoodSync2Go is free to try for 30 days After trial expire you can buy a perpetual license of GoodSync2GO here.