25x MF-23B CUID RFID 13.56 MHz Access Card

MF-23B CUID RFID 13.56 MHz access card by Spreest, compliant with the MIFARE Classic 1K (S50) standard. Designed for access control systems, intercoms, time and attendance recording, and all devices operating at 13.56 MHz.

The card allows for programming of memory sectors, enabling user data to be written and edited according to system requirements. As a standard MIFARE S50 medium, the card has a factory-programmed UID that cannot be changed – the card is not copyable.

Key features

• Media copying: None – the card is not copyable (UID cannot be changed).
• Programming: Editing sectors, blocks, and keys, excluding sector 0.
• UID change: Cannot change identifier.
• Communication standard: ISO/IEC 14443A.
• Format: PVC card in CR80 standard.
• Application: Access systems, time and attendance, identification, intercoms.

Technical Specification

• Standard: MIFARE Classic 1K (S50)
• Memory: 1024 bytes (16 sectors)
• Frequency: 13.56 MHz
• Key support: Key A / Key B
• UID changeability: No
• Protocol: ISO/IEC 14443A
• Dimensions: 85 × 54 × 0.86 mm (CR80)
• Material: PVC
• Color: Black

Set includes

• 25x MF-23B CUID RFID 13.56 MHz access card