SanDisk 128GB Ultra Micro SD SDXC UHS-I Class 10 works with Samsung Galaxy S9 Memory Card S9+, S9 Plus (SDSQUAR-128G-GN6MN) with Everything But Stromboli (TM) Card Reader (Class 10 128GB)
Original Dual Sim Card+micro Sd Holder Slot Tray For Samsung Galaxy S9 S9 Plus G960u G965u Microsd Single Sim Card Tray - Sim Cards Adapters - AliExpress
The difference between Galaxy S9 and S9+
Tray SIM For Samsung Galaxy S9/S9 Plus Adaptor Card Micro SD G960 | eBay