13.56 MHz RFID access card, thin, W26-bit numbering.

Description

13.56 MHz RFID access card.

are contactless radio-frequency identification (RFID) access cards used in security systems, such as door access control, transportation systems, libraries, or workplace attendance tracking. The term “China chip” may refer to lower-cost or universal RFID tags/chips manufactured in China, which are widely used in various budget-friendly solutions.

Product Description:

Frequency:
13,56 MHz (High Frequency – HF)

Chip:
China-manufactured clonable or compatible chip, typically:

• UID changeable chip – rewritable UID.

• MF1S50 compatible – 1K EEPROM, 16 sectors, 4 blocks per sector.

Standard:

• ISO/IEC 14443 Type A

Material:
PVC plastic (white or printable).

Dimensions:
85,5 × 54 mm (ISO/IEC 7810 – standard ID-card size)

Reading range:
5–10 cm (depends on the reader).

Features and advantages:

• Passive card – does not require an internal power source (no battery).

• Clonable – UID change possible (requires a special writer).

• Data read/write – 1 KB EEPROM for data storage.

• Compatibility with many readers – suitable for most MIFARE® Classic systems.

• Printable surface – suitable for logos, names, and ID printing.

• Printed number in DEC or W26 format.

Attention:

• If the chip has a changeable UID, it may not be compatible with all MIFARE® systems that verify UID authenticity.

• Original MIFARE® Classic 1K chips do not allow UID changes – “China chips” (e.g. F08, UID changeable variants, etc.) are alternative solutions used for testing or non-standard implementations.

• Not compatible with 125 kHz readers – only for 13.56 MHz devices.