Finished Product#

• MFF2 (QFN8) to 4FF card board
  https://item.taobao.com/item.htm?id=730209105541
• ST33G (WLCSP11) to 4FF card board
  https://item.taobao.com/item.htm?id=723325804913
• Sysmocom Shop SIM Adapter series
  https://shop.sysmocom.de/SIM/Adapters/

References#

• UICC Chip Packaging
• ETSI TS 102 671
• SIM 卡转接板 (Chinese)
• eSIM 转 SIM (Chinese)