Hi there,
Thanks for your question. This card may or may not be compatible with Nintendo Switch OLED device. For Nintendo Switch OLED, we recommend using a Nintendo-licensed SANDISK microSD card. For compatible options, please check: https://www.sandisk.com/solutions/gaming/nintendo-switch-memory-cards. If you have any further queries, please reach out to us at: https://support-en.sandisk.com/app/askweb