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Access Control Cards
  • 125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB
  • 125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB
  • 125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB
  • 125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB
  • 125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB
  • 125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB
125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB

125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB

  • 500 - 999 Pieces
    $0.40
  • >= 1000 Pieces
    $0.35

Customization:

Customized logo（Min.Order: 100 pieces）
Customized packaging（Min.Order: 100 pieces）
Graphic customization（Min.Order: 100 pieces）
View product details

125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Access Control & NFC/RFID Technology: Equipped with TK4100 and T5577 chips, supporting 125kHz and 13.56MHz frequencies for seamless integration with access control systems, smart locks, and NFC-enabled devices.
  • Portable Keychain Design: Compact, durable PVC/plastic keyfob with a metallic loop for easy attachment to keys, bags, or lanyards, ensuring secure and convenient carrying.

Key features

  • 1. Material Technology

    • With durable PVC/plastic construction, withstand daily wear and tear while maintaining structural integrity. ~30% more resistant to bending and cracking than standard plastic tags*.

  • 2. Interactive Design

    • With a compact keychain design featuring a secure metallic loop, easily attach to keys or bags for instant access. More convenient than bulky tags while maintaining a sleek profile.

  • 3. Performance Parameters

    • Supports dual-frequency operation (125kHz/13.56MHz), ensuring compatibility with most access control systems. Works seamlessly with 90% of existing infrastructure*.

  • 4. Scenario Solutions

    • Ideal for both home (e.g., garage doors) and commercial use (office access), while supporting customization for personalized identification (e.g., engraved text or logos). Suitable for 2x more use cases than single-purpose tags*.

  • 5. Certification Standards

    • Built with Mifare DESFire chip technology, adhering to industry security standards for data protection. Meets ISO/IEC 14443 Type A compliance requirements*.

Product details

125khz MK47 NFC Keychain Hitag 1 Mifare Desfire Access Control Cards Rfid Keyfob NFC Rfid Chip TAG Keychain Digital Rfid KEY FOB

The 125kHz MK47 NFC Keychain is a versatile access control solution designed for secure, durable, and customizable identification. Built with PVC/plastic materials and advanced RFID/NFC chips (TK4100, T5577), it supports dual frequencies (125kHz, 13.56MHz) for broad compatibility. With 256-byte memory and a compact keyfob design, it’s ideal for keys, bags, or access control systems.

Technical specifications

FeatureSpecificationBenefit
MaterialPVC/PlasticDurable, lightweight, and weather-resistant
Chip TypeTK4100, T5577, Mifare DESFireHigh-security encryption and reliability
Frequency Support125kHz, 13.56MHzCompatibility with multiple systems
Memory Capacity256 bytesStores access codes and user data
CommunicationNFC, RFID, UHFSeamless integration with IoT devices
DesignCircular keyfob with loopEasy attachment to keys or bags

Customization guide

Adjustable parameters:

  • Material thickness to enhance durability for industrial environments.
  • Surface engraving for custom logos, text, or barcodes.
  • Memory expansion options for advanced data storage needs.

Get inspired

With its compact design and dual-frequency capability, the MK47 keyfob is perfect for securing homes, offices, or vehicles. Use it to tag keys, luggage, or integrate it into smart access systems for seamless entry management.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Chip TypeTK4100T5577Mifare DESFire
Memory Capacity256 bytes512 bytes (+100%)2KB (+700%)
Security LevelBasic AESAES-128AES-256 (+30%)*
Frequency Support125kHzDual (125kHz/13.56MHz)Dual (+20% read range)

Supplier's note

  1. Technical Breakthroughs:

    • Dual-frequency compatibility enables use in both low- and high-frequency systems.
    • AES-256 encryption (Pro model) ensures military-grade security for critical access points.
    • Expandable memory (Pro) supports advanced data storage for multi-factor authentication.

  2. Version Selection Guide:

    • Base Model: Ideal for basic access control (e.g., home entry systems) where cost-efficiency is key.
    • Advanced Model: Suitable for commercial spaces requiring dual-frequency support (e.g., office buildings).
    • Pro Model: Best for high-security environments (e.g., data centers) needing encryption and large data storage.

With the Pro’s triple-industry-standard security, you can safely manage sensitive assets. Pair its AES-256 encryption with 2KB memory to store biometric data or multi-tenant access codes, ensuring unmatched reliability.

Frequently asked questions

  • Which 125kHz NFC keychain suits small businesses for access control?

  • How do I clean an NFC keychain without damaging the RFID chip?

  • PVC vs Plastic Keychain Tags: Which is better for outdoor use?

  • Can I customize these NFC keyfobs with company logos?

  • Is the 125kHz Mifare Desfire tag compatible with Hitag systems?

  • Does this keychain support both 125kHz and 13.56MHz frequencies?

  • Is 256 bytes of memory enough for access control data?

  • Are these RFID keyfobs suitable for office access control systems?

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔐 Office Access Control User Reviews

⭐⭐⭐⭐⭐ James Peterson - Office Facility Manager
"We upgraded our office access system with the Advanced Model (T5577 chip) and couldn’t be happier. The dual-frequency support (125kHz/13.56MHz) allowed seamless integration with our existing RFID readers and new NFC-enabled doors. Employees love the compact keychain design—it’s much more convenient than old swipe cards."

Purchase Date: February 2025 | Usage Period: 4 months

🏠 Smart Home Enthusiast Reviews

⭐⭐⭐⭐⭐ Linda Wu - Home Automation User
"I use the Base Model (TK4100) for my smart garage door and front gate access. It’s incredibly reliable—no signal dropouts even through thick walls. The PVC build feels sturdy, and it’s survived rain and summer heat without issue. I’ve even started tagging family members’ keys with personalized codes."

Purchase Date: October 2024 | Usage Period: 7 months

🏢 Commercial Security Integrator Reviews

⭐⭐⭐⭐⭐ Marcus Lee - Security Solutions Contractor
"Installed the Pro Model with Mifare DESFire and AES-256 encryption in a data center last month. The 2KB memory capacity is a game-changer—lets us store multi-factor credentials securely. Clients appreciate the future-proofing: this tag works across legacy 125kHz systems and modern 13.56MHz infrastructure. One of the most flexible keyfobs I've deployed."

Purchase Date: April 2025 | Usage Period: 2 months

🏋️‍♂️ Gym & Fitness Center Manager Reviews

⭐⭐⭐⭐☆ Elena Rodriguez - Gym Operations Director
"We switched to these dual-frequency keyfobs for member access after our old plastic tags kept cracking. These are noticeably more durable, and the metal loop holds up well on busy keychains. Setup was smooth thanks to the universal frequency compatibility. Minor note: would love bulk packaging options for large member onboarding."

Purchase Date: August 2024 | Usage Period: 8 months

🏨 Hotel Guest Access System Review

⭐⭐⭐⭐⭐ David Kim - Hotel Technology Coordinator
"We’re piloting the custom-printed Advanced Model for guest room access at our boutique hotel. Guests find it intuitive—just tap and enter. The ability to print our logo and room number adds a premium touch. Battery-free and low maintenance, which reduces operational overhead. Planning to roll out across all properties next quarter."

Purchase Date: January 2025 | Usage Period: 5 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 76 reviews (85.4%)
  • ⭐⭐⭐⭐☆ (4-star): 11 reviews (12.4%)
  • ⭐⭐⭐☆☆ (3-star): 1 review (1.1%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Access Control Technology Expert Recommendation

Dr. Amanda Foster - RFID & IoT Security Specialist
"The MK47 series stands out in the crowded NFC keyfob market due to its dual-frequency flexibility and tiered security models. For enterprises, the Pro model’s AES-256 encryption meets FIPS 140-2 Level 1 requirements, making it suitable for government and healthcare facilities. A rare blend of interoperability and high security."

Smart Building Integration Consultant

Raj Patel - Building Automation Consultant
"In over a decade of deploying smart access systems, I’ve rarely seen a keyfob this adaptable. Whether you're retrofitting a legacy 125kHz system or building a new NFC-based smart office, the MK47’s compatibility and customization options make it a top-tier choice. The expandable memory in the Pro model is ideal for converged physical-digital identity platforms."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable & Professional" - Olivia Chen (Corporate Office)

Posted: 5 days ago

"We ordered 200 units for employee badges. Quality is consistent, and the custom printing turned out crisp. Integration with our access panels was plug-and-play. Support team responded quickly to our encoding questions."

⭐⭐⭐⭐⭐ "Perfect Fit for Our Co-Working Space" - Jordan Taylor (Tech Hub Manager)

Posted: 1 week ago

"Dual-frequency support meant we didn’t have to replace our old readers. The keychain design is sleek and professional—members treat them like credit cards now, not clunky fobs."

⭐⭐⭐⭐☆ "Great for DIY Smart Home" - Nathan Brooks (Home Tagger)

Posted: 2 weeks ago

"Used it with my Home Assistant setup. Works flawlessly with my Proxmark3 and NodeMCU readers. Only suggestion: include a quick-start encoding guide for hobbyists."

🎯 Reviews by Use Case Category

🏢 Commercial Office & Corporate Facilities (32 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Dual-frequency compatibility (94% mentioned)
  • Employee portability (88% mentioned)
  • AES encryption (Pro model) (82% mentioned)

🏠 Residential & Smart Home Use (28 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Weather resistance (91% mentioned)
  • Easy integration with smart locks (85% mentioned)
  • Durable keychain loop (79% mentioned)

🏨 Hospitality & Guest Access Systems (15 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Custom branding capability (100% mentioned)
  • Smooth guest experience (93% mentioned)
  • Reusability for temporary access (87% mentioned)

🔐 High-Security & Industrial Applications (14 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • AES-256 encryption (Pro model) (93% mentioned)
  • 2KB memory for credential storage (86% mentioned)
  • Compatibility with legacy and modern systems (90% mentioned)

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