Amazon.com: Dual SIM Card Tray for OnePlus 9 Pro LE2121 SIM Card Holder for LE2121 SIM Card Slot Replacement for LE2125 LE2123 Silver : Cell Phones & Accessories
Sim Card Tray For Oneplus 9 Pro Replacement Phone Card Slot For Oneplus 9r - Sim Cards Adapters - AliExpress
For OnePlus 9 Pro 9R Nord N10 N100 CE Micro SD Sim Card Tray Slot Holder Replacement Repair Parts _ - AliExpress Mobile
How To Insert / Remove Sim Card On OnePlus 9 / OnePlus 9 Pro - YouTube
For Oneplus 9 Pro Sim Tray Micro Sd Card Holder Slot Parts Sim Card Adapter Replacement Le2121 Le2125 Le2123 Le2120 Le2127 - Mobile Phone Housings & Frames - AliExpress
OnePlus 8 (Pro): How to insert the SIM card? Installation of the nano SIM cards (Tutorial) - YouTube
Sascha Segan on Twitter: "A reader challenged me to show that the US @oneplus 9 Pro is single and not dual SIM. So here is its one, non reversible SIM tray. https://t.co/lqS7qMMXxQ" /
OnePlus 9 Specs | OnePlus United States
OnePlus phones in North America no longer support dual SIM