... all 1, 2, 3 Tracks readable Interface: USB/RS232/keyboard Port Dimensions: (LxWxD): 230 * 75 * 60 ... mass 3-10 upon your quantitySpecificationsUSB interface to keyboard buffer, reads 3 tracks of data. Designed ... Windows programming disk supplied.Item specificsCable: USB /RS232 / Keyboard port Cable,Format: ISO7811, 12, 13 Credit Card ... these magnetic stripe products. GHC super quality magnetic card reader