is there an internal card reader in my imac

Oh, ok. Thanks for the clarification. Then, yes. Your iMac has an SDXC card reader.

Please see: About the SD and SDXC card slot on your Mac - Apple Support.

Cheers,

Jack

Hi sonflower07,

Are you referring to the unreleased 24" iMac? If so, it does not have an SDXC card reader. Rather, you must purchase this adapter: USB-C to SD Card Reader - Apple.

Cheers,

Jack