Amazon.com: SanDisk Ultra 1TB Micro SD Card Works with Nintendo Switch & Nintendo Switch Lite Console (SDSQUA4-1T00-GN6MN) UHS-1 Class 10 Bundle with (1) Everything But Stromboli SD & MicroSD Memory Card Reader :
Abacus24-7 Nintendo Switch Memory Card, 32 GB microSD with SD Adapter, also for 2DS, 3DS, 3DS XL, Wii & Wii U - Walmart.com
How To Prepare Your 3DS And Wii U For Retirement - Hard Drive, Battery, Backup Tips | Nintendo Life