USB 2.0 high-speed transfer rate up to 480 Support slot-to-slot read/write operation Support auto detecting slot while card inserted High transfer rate with USB interface Full speed up to 480Mbps Hardware: USB 2.0 all in 1 Card Reader & Writer System Requirement PC: IBM PC 486Dx4-100MHz or higher or compatible system Windows 98/ME/2000/XP/2003 or above, Linux 2.2.7 or above Available standard USB port System Requirement MAC: Power G3, G4, or i-Mac Mac OS 9 (Recommend 9.2.2) or Mac OS X (Recommend 10.2.3) Available standard USB port Cards Supported: SMC & XD Slot: SM Card Micro SD/T-Flash Slot M2 Slot SD & MMC Slot: SD Card, Mini-SD Card, SD Ultra MMC Card, MMCII Card, RS-MMC Card, HS-MMC Card, SDC Card. MS Slot: MS Card, MS Pro Card, MS MG Card, MS MG Pro Card, MS Duo Card, MS MG Duo Card, MS Pro Duo Card, MS MG Pro Duo Card