mag-stripe card reader 1. Can read 1&2 ,2&3,2 tracks cards 2. interface :RS232 or keyboard por Founctions1 This device can read 1-3 tracks in the same time.2 Varies of data standards such as ANSI/ISO and IBM are contained in one reader,which can be recognised automatically.3 Perfect compatibility :this reader can connect any kinds of terminals,such as shida,guoguang,GreatWall,mudan,huizhi,juxing, ...