Original For Samsung Galaxy S21 Plus Ultra / S21 Fe Dual SIM Card Slot SD Card Tray Holder Adapter - AliExpress
Galaxy S21/Ultra/Plus: Does Your Phone Support SD Card Memory Expansion? - YouTube
Does Samsung's Galaxy S21 sound the death knell for Android phones with microSD? | TechRadar
Does the Galaxy S21 Ultra have expandable memory (SD Card Slot)? - ESR Blog
Akash Pal on X: "Reports suggest that the Galaxy S21 and S21+ will not support expandable storage. S21 Ultra will reportedly be the only model with a microSD card slot.Each Galaxy model
Samsung Galaxy S21 | ¿Es compatible para una Tarjeta de Memoria SD? - YouTube