Phone SIM SD Card Trays For Samsung Galaxy S21 Ultra Original Phone SIM Chip Reader Card Slot Holder Drawer Silver Black + Pin
Amazon.com: P&R, PandR Galaxy S21 S21 Plus S21 Ultra Dual SIM Card Tray Holder Slot Replacement Parts for Samsung Galaxy S21 S21 Plus S21 Ultra 5G Type C and Eject Pin Phantom
How to Insert (Remove) SIM Card in Samsung S21 / S21+ / S21 Ultra 5G (No MicroSD) - YouTube
Amazon.com: s21 Plus Single Sim Card Holder Replacement Tray for Samsung Galaxy s21 Ultra SM-G998B 6.8 inch,Sim Card Slot Also fit for Galaxy s21 Plus SM-G996,Galaxy s21 Tray (Black) : Cell Phones