TK4100-W Proximity Card Without Serial Number
TK4100-W is a blank ISO standard proximity card operating at 125kHz frequency without a pre-printed serial number. Made of durable PVC with 0.8mm thickness, it features a standard CR80 form factor (85.6mm × 54mm) and can be directly printed on both sides using any plastic ID card printer, making it…
Technical Specifications
The TK4100-W is a 125kHz RFID proximity card based on the TK4100 chip technology but without a pre-printed serial number. It features a standard CR80 form factor with dimensions of 85.6mm × 54mm × 0.8mm (3.37″ × 2.13″ × 0.03″), matching the size of a typical credit card. The card operates using passive RFID technology, requiring no internal battery.

Key Features
- Blank Design: No pre-printed serial number, providing a clean surface for customization
- Material: Made of durable white PVC material with 0.8mm thickness
- Printable Surface: Can be printed directly on both sides using any plastic ID card printer
- Operating Frequency: 125kHz, compatible with most standard proximity readers
- Protocol: ISO10536 (125 kHz EM4100 Compatible)
- Memory: 64-bit read-only memory
- Reading Distance: Typically 2-10cm (0.8-4 inches) depending on the reader
Applications
The TK4100-W proximity card is widely used in various applications including:
- Employee identification badges
- Student ID cards
- Access control systems
- Time and attendance tracking
- Membership cards
- Visitor management systems
Advantages
- Customization: Completely blank surface allows for full personalization
- Reliability: Consistent read performance with no battery required
- Durability: Resistant to normal wear and tear
- Cost-Effective: Affordable solution for bulk deployment
- Compatibility: Works with most 125kHz proximity readers on the market