14 days for testing

[anon82920800]

There is a bit of explanation in this thread

@cynerd

Flash memory in TO is (up to my knowledge) SK hynix eMMC4.5 which manufacturer specifies, for density of 4GB, 2.4TB total bytes written before EOL.

Thence, it depends on your level of worry - to be worry-free you would have to run the OS from SSD or USB.