1) RFID key fob: contactless read and write 2) Logo printing available 3) Secure access control and identification cute color RFID key fob 1) Other Chip Available · ID Available at 125KHz nominal: EM4100, TK4100,etc, T5577, etc· IC Available at 13.56MHz nominal: Mifare 1k S50, Mifare 4K S70, I-code 2, SLE5542,SLE4442, Fudan series,etc. 2) Physical Size: 3.2cm× 4.0cm, Thickness: 4.0mm 3) Standard ...