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RFID Dual Frequency Card – UHF U8 7618 + ID-125KHz EM4100/TK4100 (Fixed ID)

Description

This writable UHF + Fixed ID-125KHz Combo RFID Card combines an NXP UCODE 8 chip (EPCglobal Gen 2v2, ISO 18000-63 compliant) for long-range UHF communication and a 125KHz TK4100 chip for low-frequency identification with a fixed, read-only ID number. The UHF component enables efficient tracking, asset management, parking and bulk inventory operations over extended distances, while the TK4100 chip ensures consistent identification for legacy systems such as access control, time attendance, or parking.

This dual-frequency card is ideal for environments where both modern EPC-based UHF systems and traditional 125KHz proximity systems are used in parallel. The UHF side supports writable EPC memory and integration with advanced RFID infrastructure, while the TK4100 chip delivers stable compatibility with most 125KHz readers using EM4100/TK4100 protocol.

Dual Chip Integration:

UHF + ID 125KHz chip in one card supports both long-range tracking and short-range scanning.

UHF Chip – NXP U8:

  • Compliant with EPC Gen2 / ISO18000-6C
  • Up to 10m read range (depending on reader)
  • 128 bits (user writable)

ID Chip – EM4100/TK4100:

  • 125KHz low-frequency RFID chip
  • Compatible with EM4100 / TK4100 protocol
  • 5-byte fixed ID (read-only, non-writable)

Physical Specs:

  • Card size: CR80 (85.6 × 54 mm)
  • Material: PVC or PET
  • Printable surface (optional for card printers)
Feature / Parameter NXP UCODE 8 (7618) TK4100 / EM4100
Frequency UHF 860–960 MHz LF 125KHz
Protocol EPC Gen2 v2 / ISO 18000-6C EM4100 / TK4100 (proprietary)
Chip Type Writable, high-performance RFID chip Fixed ID, read-only chip
EPC Memory 96 bits (Writable) N/A
User Memory None None
TID (Tag ID) 48-bit, factory-programmed, read-only (Fixed) 40-bit (5 bytes), fixed ID, read-only
UID Writable? ❌ No (TID fixed), but EPC is writable ❌ No (UID is permanently fixed)
Read Range Up to 8–10 meters (depends on reader/antenna) Up to 3–8 cm (depends on reader)
Application Use Long-range tracking, logistics, automation, parking Access control, parking, time attendance
Data Protection Supports access and kill password options No password or encryption support
Chip Manufacturer NXP Semiconductors OEM (TK4100), EM Microelectronic (EM4100)
Writable Data EPC memory only None (read-only fixed ID)
Typical Use Environment Modern RFID infrastructure, EPC tracking Legacy 125KHz systems, door access

RFID Dual Frequency Card – UHF U8 7618 + ID-125KHz EM4100/TK4100 (Fixed ID)

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This writable UHF + Fixed ID-125KHz Combo RFID Card combines an NXP UCODE 8 chip (EPCglobal Gen 2v2, ISO 18000-63... Read more

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5000 in stock

Dhs. 5.00 Incl. VAT

      Description

      This writable UHF + Fixed ID-125KHz Combo RFID Card combines an NXP UCODE 8 chip (EPCglobal Gen 2v2, ISO 18000-63 compliant) for long-range UHF communication and a 125KHz TK4100 chip for low-frequency identification with a fixed, read-only ID number. The UHF component enables efficient tracking, asset management, parking and bulk inventory operations over extended distances, while the TK4100 chip ensures consistent identification for legacy systems such as access control, time attendance, or parking.

      This dual-frequency card is ideal for environments where both modern EPC-based UHF systems and traditional 125KHz proximity systems are used in parallel. The UHF side supports writable EPC memory and integration with advanced RFID infrastructure, while the TK4100 chip delivers stable compatibility with most 125KHz readers using EM4100/TK4100 protocol.

      Dual Chip Integration:

      UHF + ID 125KHz chip in one card supports both long-range tracking and short-range scanning.

      UHF Chip – NXP U8:

      • Compliant with EPC Gen2 / ISO18000-6C
      • Up to 10m read range (depending on reader)
      • 128 bits (user writable)

      ID Chip – EM4100/TK4100:

      • 125KHz low-frequency RFID chip
      • Compatible with EM4100 / TK4100 protocol
      • 5-byte fixed ID (read-only, non-writable)

      Physical Specs:

      • Card size: CR80 (85.6 × 54 mm)
      • Material: PVC or PET
      • Printable surface (optional for card printers)
      Feature / Parameter NXP UCODE 8 (7618) TK4100 / EM4100
      Frequency UHF 860–960 MHz LF 125KHz
      Protocol EPC Gen2 v2 / ISO 18000-6C EM4100 / TK4100 (proprietary)
      Chip Type Writable, high-performance RFID chip Fixed ID, read-only chip
      EPC Memory 96 bits (Writable) N/A
      User Memory None None
      TID (Tag ID) 48-bit, factory-programmed, read-only (Fixed) 40-bit (5 bytes), fixed ID, read-only
      UID Writable? ❌ No (TID fixed), but EPC is writable ❌ No (UID is permanently fixed)
      Read Range Up to 8–10 meters (depends on reader/antenna) Up to 3–8 cm (depends on reader)
      Application Use Long-range tracking, logistics, automation, parking Access control, parking, time attendance
      Data Protection Supports access and kill password options No password or encryption support
      Chip Manufacturer NXP Semiconductors OEM (TK4100), EM Microelectronic (EM4100)
      Writable Data EPC memory only None (read-only fixed ID)
      Typical Use Environment Modern RFID infrastructure, EPC tracking Legacy 125KHz systems, door access

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