Support: Inserting a microSD™ Card on a Garmin® Automotive Device - YouTube
Garmin Dash Cam Mini 2 - Installing a Memory Card
Amazon.com: SanDisk 32GB High Endurance Video Card MicroSDHC for Dash Cams Works with Garmin Mini, 56, 66W Dash Cameras (SDSQQNR-032G-GN6IA) Bundle with (1) Everything But Stromboli SD & Micro SD Card Reader :
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Amazon.com: Professional Ultra SanDisk 32GB verified for Garmin Nuvi 3597LMTHD GPS MicroSDHC card with CUSTOM Hi-Speed, Lossless Format! Includes Standard SD Adapter. (UHS-1 A1 Class 10 Certified 98MB/s) : Electronics