How to insert an SD card into a Nintendo Switch to save game data and screenshots, or remove a card that's already in

To insert an SD card into your Nintendo Switch, you'll need to lift up the Switch's kickstand, which is on the back of the device.

How to transfer screenshots from your Nintendo Switch to another device, so that you can edit or share them with others

There are two ways to transfer screenshots off the Nintendo Switch: with a microSD card, or through a Twitter or Facebook account.
Game Rant

Where's the SD Card Slot on the Nintendo Switch?

Gamers that have recently picked up a Nintendo Switch may want to get an SD card to fill it up with digitally downloaded titles from the eShop. However, before doing so, Switch owners will want to ...