Samsung SSD Magician Software
Samsung provide, via download, some software known as the Samsung SSD Magician software.
This software enables you to run tests on the drive, perform firmware updates and optimization, and more.
Just visit the Samsung website to download it.
Installation is very simple, just following the steps in the wizard:
Then you can run the software:
You can choose from a number of different options once the software starts:
You can see System Information, which includes firmware details and size information: