Generic SD SDHC SDXC to High-Speed Extreme Compact Flash CF Type I Adapter For 16/32/64/128 GB Adapter for 2/4/8/16/32/64 gb CF card High speed CF card reader If you have a CF card, you can insert CF card into the interface, so that your TF card can be used as a SD card. Small and exquisite, convenient and easy to use.