SANDISK 128GB Ultra microSD UHS-I Card - Up to 195MB/s Read Speed, Full HD Video, V10, U1, C10, A5 - SDSQUJQ-128G-GZ6MA

try this one pretty good price Amazon.com: SANDISK 128GB Ultra microSD UHS-I Card - Up to 195MB/s Read Speed, Full HD Video, V10, U1, C10, A5 - SDSQUJQ-128G-GZ6MA : Electronics

no its offbrand no it work work for a standard 3ds/2ds and no dont trust it. if your country allows it i would get this off of amazon https://amazon.com/dp/B09X7C7NCZ (standard 3ds 2ds only) if you have a new 3ds/2ds get this https://amazon.com/dp/B0G8L1RNPF and for your switch. this https://amazon.com/dp/B09X7MPX8L something important to know is the 3ds/new3ds lineup take a while to load with bigger cards. and your never using 128 or 64 gigs on a 3ds anyway as its games and homebrew are ᴛɪɴʏ switches dont have the 3ds problem so go as big as you like.

Depending on which model you have, you would need a regular sd card or a micro sd card. These are my picks:- micro- regular