Comment by GuB-42

That should be illegal, they should use the same rules as for food packaging.

For a 1kg bag of flour bought in the EU, that would be

- On average, you should get at least 1kg of flour

- No bag should be less than 985g

- Packaging does not count

For a USB stick, that would be

- On average, the actual capacity must be no less than what's advertised

- For a given product, the actual capacity must be no less than what's advertised, within a small margin

- Only usable capacity counts