Buy MAGICSIM Elite - Dual SIM Adapter for your Galaxy S7 Edge
Dual SIM Card Adapter for Samsung Galaxy S5/G900, S IV/i9500, S III/i9300, Note III/N9000, Note II/N7100, Mega 6.3/i9200, Grand 2/G7106 : Amazon.in: Electronics
Single Dual SIM card tray SIM slot Holder Adapter For Samsung Galaxy S22 Ultra | eBay
You can give yourself 4 extra SIM Cards with this Samsung Galaxy Multi-SIM Adapter - Yanko Design