Here is the official spec sheet for the Galaxy S9 and Galaxy S9+ - SamMobile
Type C Micro SD Card Reader USB C to TF Card Adapter for MacBook PRO Samsung S9 S8 Xiaomi 5 6 - China Type C Card Reader and Type C to Micro
Sandisk 32GB Extreme Pro 4K Memory Card works with Samsung Galaxy S9, S9+, S8, S8 Plus, Note 8, S7, S7 Edge - UHS-1 V30 Micro (SDSQXCG-032G-GN6MA) with Everything But Stromboli (TM) Card
Aocarmo Single/dual Metal Plastic Nano Sim Card Tray Micro Sd Slot Holder For Samsung Galaxy S9 / S9 Plus S9+ - Sim/sd Card Trays - AliExpress
Galaxy S9 - How to insert sim card and microSD card | Samsung New Zealand
10 Pcs New For Samsung Galaxy S9 Plus S9+ G960 G965 Single Dual Sim Card Tray Holder Reader Micro Sim Sd Card Tray Slot Parts - Sim Cards Adapters - AliExpress
SanDisk 256GB Micro SDXC Extreme Pro Memory Card Works with Samsung Galaxy S9, S9+, S8, S8 Plus, S7, S7 Edge UHS-1 U3 A2 Bundle with (1) Everything But Stromboli 3.0 Micro/SD Card
Samsung Galaxy S9 / S9+ - Insert or Remove SD / Memory Card | Verizon
Samsung EVO Micro SD Memory Card 256GB C10 for Galaxy S20 S10 Note 10+ S9 S8 S7 | eBay
128GB Micro SD Memory Card For Samsung Galaxy S9 9+ Plus Mobile Phone 7426996623192 | eBay
SanDisk 256GB Micro SDXC Extreme Pro Memory Card Works with Samsung Galaxy S9, S9+, S8, S8 Plus, S7, S7 Edge UHS-1 U3 A2 Bundle with (1) Everything But Stromboli 3.0 Micro/SD Card
Galaxy S9 Plus - Dual SIM & SD Card Work Simultaneously on Samsung Galaxy S9 Plus Duos - YouTube
Top things you need to know about the Samsung Galaxy S9's SD card slot | Android Central
Samsung Galaxy S9 SIM Card or MicroSD Card Replacement - iFixit Repair Guide
Samsung Galaxy S9 / S9+ (G960U/G965U) - Insert or Remove SIM & Memory Card - AT&T
One Single SIM Micro SD Card Tray Holder Slot Replacement w/Eject Pin for Samsung Galaxy S9 Plus SM-G965U
Samsung Galaxy S9 / S9 Plus SIM Card & Micro SD How to Insert or Remove - YouTube
