Samsung PRO Endurance 64GB Micro SDXC Card with Adapter for $19.99 shipped. Here is a screenshot for reference. It is designed specifically for video monitoring cameras (dash cams, surveillance & security cams, cctv, body cams…). It stores up to 26,280 hours of 4k and full hd (1080p) recording and playback. Most places have it for about $34.