Amazon.com: SanDisk Memory Card 128GB Ultra MicroSD Works with Samsung A20s, A71 5G, A51 5G Cell Phone (SDSQUA4-128G-GN6MN) Bundle with (1) Everything But Stromboli MicroSDXC & SD Card Reader : Electronics
Samsung Galaxy A51 Micro SD Card Adapter
How to Insert Nano SIM Card to SAMSUNG Galaxy A51 – Input Micro SD Card - YouTube
Galaxy A51: How to Insert SD Card Properly & Format - YouTube
Amazon.com: Samsung Evo Plus 64GB Micro SDXC Memory Card Class 10 Works with Samsung Android Phones – Galaxy A51, A50, A40, A30 (MB-MC64KA) Bundle with (1) Everything But Stromboli MicroSD & SD
Samsung Galaxy A51: How to transfer apps to the SD card (microSD)? works also with A31/A41/A71 - YouTube
Samsung Evo MicroSD Memory Card for Samsung Galaxy A42, A51, A52, A71, A01 Phone | eBay