info After completing your order, click here to submit the artwork. Chip: NXP MIFARE Classic® EV1 1k produced by NXP ISO/IEC 14443 - A Total memory: 1kb Write endurance (typical cycles): 200,000 Data Retention: up to 10 years 4-byte UID CRYPTO1 cryptography supported For more information about NXP MIFARE Classic® IC, please visit MIFARE