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EM Microelectronic EM4205

EM Microelectronic EM4205

This Epoxy Key Fob contains an authentic EM Microelectronic EM4205 chip


  • Epoxy Key Fobs are durable, reusable, accessible and stylish.
  • Because they are made of PVC Plastic and have an epoxy finish, we are able to print any high-quality image on the front and back then complete the design with a high-shine, epoxy finish.
  • Available in a variety of solid colors or choice of any unique image.
  • Any unique logo or design can be printed on the front and back.
  • This product is extremely durable, compact, and perfect for keepsakes or long-term use.
  • Securely sealed RFID transponder enables the key fob to be used as a personal identification credential for a variety of applications, including:
  • Door Lock Keys
    • Salto Keys
    • Miwa Keys
    • Saflok Keys
    • Onity Keys
  • Payment
    • Prepaid Visa
    • Prepaid Mastercard
    • Prepaid Discover
    • Prepaid American Express
  • Access Control
  • Social Media Activations
  • Cashless Payment
  • Payment Token
  • RFID Token
  • Gym/Club/Spa Memberships
  • Gaming
  • Promotions
  • Souvenirs
  • Employee Identification
  • Closed Loop Payments
  • Loyalty Programs
  • Season Passes
  • Ticketing
  • Brand Reinforcement
  • General Promotions
  • NFC Credential
  • RFID Credential
  • Loyalty Token


  • Manufacturer
    EM Microelectronic
  • Chip
  • Radio Frequency
    125 kHz
  • Protocol
  • Memory
    512 bits
  • Min Order Qty
    500 Pieces
  • RFID
  • NFC Enabled
  • NFC Forumicon
  • Material
  • Operating Temperature
    -10 to +50 Celsius
  • Dimensions / Available Shapes
  • Colors
  • Printing Method
    Printing Method: 
  • Printing
    Double Sided, Full Color
  • Other Customizations
    1D or 2D Bar Code, Magnetic Stripe, QR Code, Serial Number File, Serial Number Printing
  • Lead Time
    4 Weeks