The Schlage 8543 (formerly aptiQ 8543) is a premium, high-security ISO glossy white contactless smart card engineered for strict organizational security. Utilizing advanced MIFARE DESFire EV3 smart technology operating at a 13.56 MHz frequency, it provides industry-leading mutual authentication and AES 128-bit cryptographic encryption to safeguard data.
With a spacious 4K byte (32k bit) memory capacity, this printable composite card supports multiple secure software applications on a single credential, ranging from physical facility access to time and attendance tracking or cashless cafeteria vending.

Manufacturer:    Schlage (Allegion)
Model Number:    8543 / 8543M1 (with Magnetic Stripe)
Technology Platform:    MIFARE DESFire EV3 (ISO 14443 compliant)
Operating Frequency:   13.56 MHz (Single Frequency Smart)
Memory Configuration:    4K Byte / 32k Bit
Cryptographic Encryption:    AES-128 Bit Diversified Key
Dimensions:    Standard ISO Size (3.37" x 2.125" x 0.033")
Form Factor / Finish:    ISO Glossy White (Printable Composite Material)
Supported Bit Formats:    26-Bit, 32-Bit, 34-Bit, 35-Bit, 36-Bit, 37-Bit, 40-Bit, 48-Bit