Amazon.com: Satechi Aluminum Type-C Clamp Hub Pro with USB-C Data Port, USB-A 3.0 Data, Micro/SD Card Reader - Compatible with 2020/2019/2017 iMac & iMac Pro, Does Not Fit 2021 iMac (Silver) :
USB C SD Card Reader, Oyuiasle USB C to SD Card USB Adapter for iPad/Mac, Trail Camera USB-C/Type C Memory Card Reader for iMac, iPad Pro/Air/Mini, MacBook Pro/Air, Galaxy, MicroSD/SD, and More
Kuo: New MacBook Pro Models With HDMI Port and SD Card Reader to Launch Later This Year - MacRumors
Can I use an SDXC Card (512MB ) as a prim… - Apple Community