... speeds up to 20M/S,required for high-speed flash memory card 20M/S. 2.Plug and play,supports hot swap ... :FCC,CE and ROHS certification.4.Support the SDHC format memory catds:64MB-32GB support all TF(Micro SD),M2-free ... : 70*13*3mm Type:SD Card, XD Card, MMC Card, Memory Stick Card, SM Card, CF Card