Nintendo E shop card?

I wanted to get a Nintendo e shop card for the Switch, it also works with the one where Wii you and Nintendo 3DS is on it for the Switch or not. Sorry for the loose question but nowhere could I find an answer.

Can you also use them for the switch or do you need them here:

Yes, you can (most likely) redeem them at the Switch! My older sibling has done this several times. But 'splitting' on other devices is not possible.

Many thanks for the quick response

So actually this should already be the upper ones are just the old ones with the old design which is why it only says 3ds and wiiu

All work

Thank you for your answers