CY Dual Slot TF or MicroSD Micro SD to Type I Compact Flash Card CF Reader Adapter for Nikon Cannon Carema Dual Slot micro SD TF Memory Card to Compact Flash CF Type I Adaptor Converter for Nikon Cannon Working for Nikon, Canon, Professional DSLR Camare It only work for Micro SD (TF) card, it don't work for standard SD card. Type : CF Type I (3.3mm think) Support Micro SD, SDHC and SDXC. Supports two different brands,capacity and speed ( on slow and smallest capacity one). Support UDMA6 Supports a single micro SD card or TF card up to 128GB. Support SD 3.0 ready and Windows exFAT. Support the I/O Mode, storage model and IDE mode. Support CF reader only, don't direct put into TF reader.