: This is the "version identifier" or build number used by the Nintendo Switch operating system to track the exact iteration of the software. : Short for Nintendo Submission Package
Files with this naming convention are typically mirrors used by the emulation and homebrew community to update games manually on modified hardware or emulators like Ryujinx or Yuzu. Update 1.3.0 -v393216-NSP - megaup
The suffix -v393216 represents the specific internal build number assigned by the developers to identify this exact iteration of the game files. : This is the "version identifier" or build
If you are seeing "Update queued" or encountering errors with an NSP file: Version Mismatch Update 1.3.0 -v393216-NSP - megaup