... compatible Features of NXP s50/s70 rfid chip 1)Dimension:on demand2)Pakages: flip chip pakage3)Materials: Glassine Art Paper/ pvc4 ... nominal:TK4100, EM4100, EM4102, EM4450,NXP Hiatg1, Hitag2, HitagS256, HitagS2048, Atmel temic 5567, Rfid access card, Proximity card, ID card, KEY ... versions is for dual interface card, to add another contact chip, available to punch a slotSample Available If make sample ...