Model: CRW-C1 ALL in 1 USB PROT: 2.0 USB bus powered System support: Windows98SE/Me/2000/XP Mac OS 9.x/X,Linux 2.4.x Read/Write:CF/II/MD/MS/MS PRO/MD-DUO/MS-PRO-DUO/ MS-MG/MS-PRO-MG/MS-ROM /SD/MMC/MMC II/Mini-SD/ RD-MMC/T-FLASH/SM/X Card