Note 10+ 5G - Dual-SIM (or hybrid SIM) feature is an absolute mess - Samsung Community
PSA: Galaxy Note 10 Plus 5G is not a dual SIM smartphone - SamMobile
Amazon.com: Samsung Galaxy Note 10+ Plus SM-N975F/DS, Dual SIM 4G LTE, International Version (No US Warranty), 256GB, Aura Black - GSM Unlocked : Cell Phones & Accessories
Amazon.com: MMOBIEL Dual SIM Card Slot Tray Holder Replacement Compatible with Samsung Galaxy Note 10 Plus 2019 - Incl. Rubber Gasket and Sim Pin - Black : Cell Phones & Accessories
Amazon.com: Bestdealing Note 10 Plus Dual SIM Card Tray Holder Replacement for Samsung Galaxy Note10+ Note10 Plus 6.8" SM-N975F SM-N975U N9750 with Needle (Not for Single Card Version) (Not for Note10) (Black) :
Replacement for Samsung Galaxy Note 10 Plus Dual SIM Card Tray - Black