1)all in one card reader: read or write MS,CF,XD card etc 2)No driver needed (except windows 98) 3)Built-in USB Model: ... JSAI-2 all in one card reader* Memory Slots: MS Slot: MS, MS- ... Magicstor SD Slot: SD, miniSD, MMC-I, MMC-II, MMC4.0, MMC Dual Voltage, RS-MMC,RS-MMC Dual Voltage,RS ... ; 12.7* N.W./kg: 13.5; 13; 12.2 USB2.0 all in 1 card reader