: The software uses a physical USB encryption dongle (Bit Dongle) that must be plugged into the computer at all times during use.
: You cannot use the software without the red USB dongle provided by the manufacturer of your laser machine. ezcad3 license key free
: Most software, including EZCAD3, requires a license to operate fully. This license often comes with a unique key that the user must enter to activate the product. : The software uses a physical USB encryption