The UID T5577 Dual-Frequency Repeated Erased-Write Card is a versatile and practical solution for the problem of carrying two cards. It features a UID card IC chip that can modify the 0 sector 0 blocks and can be repeatedly read and written to all sectors. This card is an analog of pure Mifare 1K S50 and is a non-CPU analog card. The T5577 (or EM4305/5200) functions as a writable ID card. The card can be customized to be a white card or with four-color offset printing, laser coding (default 8H10D), screen printing logo, etc.

This product has a wide range of applications including access control, elevators, auto parking, entertainment management, water and electricity management, member management, identification, attendance management, school canteen meal card, hot water, laundry, and bath management, etc.

Specifications:

Product Frequency: T5577/EM4305/5200 (125KHz) UID (13.56MHz)
Induction Distance: 2.0 to 10mm
Operating Temperature: -20°C to 85°C (-4°F to 185°F)
Endurance: Over 100,000 operations
Data retention: Over 10 years
Product Size: 85.5mm x 54mm x 0.80mm (or custom size)
Materials: PVC, ABS, PET, PETG, Paper