iso 14443a contactless mf1 s70 4k memory magnetic card Typical application -Single card solution -Access control -Time and attendence Quick spec. of MF1 classic 4k memory cards -Material: ROHS passed PVC -Size:85.6X54X0.84mm (thinner cards are available on request) -Frequency:13.56MHz -IC: S70 -ISO/IEC:14443a -Memory:4k byte -Reading distance:3cm to 15 cm -Package:50pcs or 100pcs per pack.200pcs per box,2000pcs per carton Commonly used crafts 1.Offset or silk printing or UV printing 2.Number printing 3.Magnetic stripe (300oe,2750oe,4000oe) 4.Silver/gold base 5.Hotstamp 6.Hole punching Free samples are available on request.