📌 What These Cards Are

PVC SIM card ISO SLE4442 blank cards are contact smart cards (not RFID/NFC) made in a standard ISO card size (CR80; ~85.5 × 54 mm) with an embedded SLE4442 contact memory chip. They are blank (unprinted) and ready for custom printing or encoding.

• Material: Durable white PVC (similar to credit card stock).

• Chip: SLE4442 contact chip (256-byte EEPROM with protection memory).

• Standard size: ISO/IEC 7816 compatible (same footprint as bank cards).

• PVC SIM card ISO SLE4442 blank cards are contact smart cards (not RFID/NFC) made in a standard ISO card size (CR80; ~85.5 × 54 mm) with an embedded SLE4442 contact memory chip. They are blank (unprinted) and ready for custom printing or encoding.

  • PVC SIM card ISO SLE4442 blank cards are contact smart cards (not RFID/NFC) made in a standard ISO card size (CR80; ~85.5 × 54 mm) with an embedded SLE4442 contact memory chip. They are blank (unprinted) and ready for custom printing or encoding.

  Blank surface: No printing — ideal for custom card designs

These aren’t SIM cards for phones; they’re smart memory contact cards with similar chip technology used for secure data storage and control.

🧠 What the SLE4442 Chip Is

The SLE4442 is a contact smart card memory chip widely used in secure ID and memory card applications:

• Memory: ~256 bytes of EEPROM for user data.

• Security: Includes a 3-byte secret code to control write access.

• Durability: Data retention for 10 + years and many program/erase cycles.

• Interface: Contact smart-card interface per ISO 7816 standard.

These cards are read/written by contact smart-card readers/writers (not RFID/NFC).

📌 Typical Uses

Blank PVC cards with an SLE4442 chip are commonly used for:

✨ Access control badges
✨ Employee/student ID cards
✨ Library / rental management cards
✨ Asset tracking and inventory cards
✨ Loyalty & membership cards
✨ Secure programmable data storage
✨ Hotel key cards (with additional encoding)

They’re especially useful where you want programmable data on a secure chip and also need a printable PVC surface.

🖨️ Printing & Encoding

✔ Printing: You can print logos, bar codes, IDs, photos, etc. using card printers (e.g., Zebra, Fargo, Evolis, Data Card, Magi card)
⚠️ These cards may not work in home inkjet printers — industry card printers are best. 
📟 Encoding/Programming: Requires a contact smart-card reader/writer that supports the SLE4442 memory protocol (often via PC/USB).