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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Toptag
  • Model Number: rfid keyfob 181
  • Item: 125Khz Custom T5577 RFID Key Ring
  • Material: ABS Plastic
  • Size: 25*28*7mm
  • Craft: Custom Silk Printing Logo
  • Application: used in access control, hotel keycards, logistics and gaming
  • Memory: 363bit EEPROM
  • Frequency: 125KHz
  • Chip: T5577
  • R/W: Read and Write
  • Write Protection: Yes

Packaging & Delivery

Packaging Details 100pcs/bag
RFID T5577 Hotel Key Fob
Delivery Time Shipped in 7-15 working days after payment

Writable Custom Hotel Key Tags, RFID T5577 Hotel Key Fob



Toptag is a very professional card products supplier since 2008. We has provided hundreds of millions of Smart card, EFID contactless card, ABS key tag, NFC tag, wristband tag, etc. With vatious chips 125KHz/13.56MHz/860-960MHz in China and worldwide.


We appreciate any opportunity to cooperate with you!



Overview of LF 125KHz keyfob
        Low frequency smart cards are predominantly used in identification and access control applications. LF cards have lower read range and communication speeds than other contactless smart card types and the most common chips offer low-cost and low-security solutions where a simple UID or identification key is required. Due to the shape of their waves, LF cards are less affected by other radio signals and materials in the environment such as water or metal which makes them a reliable choice in industrial environments.


EM4100 / EM4200: Simple read-only chip with 128 bit factory programmed UID used in access control, anti-counterfeiting and logistics.

TK4100: Simple read-only chip with 128 bit factory programmed UID used in access control, anti-counterfeiting and logistics.

ATA5577 / T5577: Read/write chip with 363bit EEPROM and write protection, used in access control, hotel keycards, logistics and gaming.



• Contactless Power Supply

• Contactless Read/Write Data Transmission

• Radio Frequency from 100kHz to 150kHz

• Basic Mode or Extended Mode

• Configurable for ISO/IEC 11784/785 Compatibility



Product Detail



125khz RFID key fob for access control




Memory363 Bits






ISO 11784/5

Other Chip


TK4100/EM4200 (Read Only)

EM4305/T5577 (Read and Write)




Or other customized chips

Reading distance

0-3cm depending on Reader antenna



Additional craft

- Silk-screen printing with logo
- Laser Engraved Number
- Ink jet printed serial number
- Chip encoding
- Rings or thread is optional


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card; access control t5577 chip card; t5577 proximity card ; rfid

 t5577 card ; t5577 chip card ; t5577 key tag ; T5577 Card Manufacturer;

T5577 Card Supplier; T5577 Card Company; T5577 Card Factory




Pictures of  RFID T5577 Key Fob







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Transaction Details

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China (Mainland)
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Supplier Assessments:
45 Transactions 170,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $45,000
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