Mini Magnetic Stripe 3 Track Credit/Debit Card Reader Yumdatto YD-447 Swipe Reader USB Interface Card standard - ISO 7811 / 7812 Card operation speed - 10 ~ 150 cm/sec(210 DPI) Interface - USB Baud rate - 1200 / 2400 / 4800 / 9600 bps Life time of head more than 500, 000 passes