What is the difference between this T5577 card and a standard ID card?

A standard ID card (like the TK4100) is "read-only" and comes with a permanent, unchangeable serial number from the factory. This T5577 card is "rewritable," meaning you can use an RFID duplicator to copy the serial number from a standard ID card and write it onto this blank card.

Can I use this card to copy my 13.56MHz apartment access card?

No, you cannot use this card to copy a 13.56MHz IC card. This card operates exclusively on the 125KHz low-frequency band. You must verify the frequency of your original access card before attempting to clone it, as the two technologies are not cross-compatible.

Do I need a special machine to write data onto this blank card?

Yes, this card is completely blank out of the box and will not work on any door reader until programmed. You must use a dedicated 125KHz RFID cloner or duplicator device to read your original card and write its data onto this T5577 card.

Can I print my company logo on this card using a normal office printer?

No, you cannot use a standard inkjet or laser office printer, as the ink will simply wipe off the plastic PVC surface. You must use a specialized thermal ID card printer (such as those made by Zebra or Fargo) to print permanent graphics onto these cards.

Can I buy these rewritable cards in bulk at your Hong Kong store?

Yes, you can purchase these 125KHz T5577 Rewritable Cards in bulk quantities at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po. We supply locksmiths, property managers, and corporate IT departments with reliable RFID cloning accessories.

125KHz T5577 Rewritable RFID Card

Name: 125KHz T5577 Rewritable RFID Card | Blank ID Copy Card
Brand: Sun Cheong Computer Company Limited
SKU: 21RM000119
Price: 34.0 TWD
Availability: InStock

Short Product Description

The 125KHz T5577 Rewritable RFID Card is a premium blank proximity badge designed specifically for cloning and backing up standard 125KHz access control cards. Powered by the highly reliable T5577 (compatible with 5200) chip, this waterproof PVC card allows for repeated reading and writing of ID data. Available in bulk for instant pickup at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po, our technical staff can advise you on the best RFID duplicators to use for seamless access card cloning.

Key Features

Rewritable T5577 Chip: Allows the internal ID serial number to be copied, erased, and rewritten thousands of times.
125KHz Frequency: Operates on the standard low-frequency band, making it perfectly compatible with legacy proximity card readers.
Waterproof PVC Construction: The durable, sealed plastic housing protects the internal copper antenna from moisture and physical damage.
Print-Ready Surface: Features a smooth, pure white finish that is fully compatible with standard thermal ID card printers.
Standard CR80 Size: Measures exactly 85.5mm x 54mm, ensuring it fits perfectly into standard badge holders and wallets.
Lightweight Design: Weighs only 6.5g, making it comfortable for employees to wear on a lanyard all day.

Full Product Description

Reliable 125KHz ID Card Duplication

This Rewritable RFID Blank Card provides a straightforward and secure solution for duplicating legacy 125KHz proximity cards. By utilizing a specialized rewritable microchip, it allows property managers and locksmiths to easily clone existing employee badges or residential access cards to replace lost or damaged originals. This ensures continuous, uninterrupted access to buildings and offices without the need to reconfigure the master access control system.

Fully Rewritable T5577/5200 Chip

Unlike standard TK4100 or EM4100 ID cards that are strictly read-only, this Smart Copy White Card is equipped with an advanced T5577 (5200 series) chip. This chip architecture allows the card's internal serial number to be erased and rewritten thousands of times using a compatible RFID cloner. This exceptional flexibility makes it a highly cost-effective solution for temporary visitor passes or contractor badges where access credentials change frequently.

Waterproof PVC & Print-Ready Surface

Constructed from high-density, waterproof PVC material, this 6.5g card is built to withstand daily physical wear, moisture, and environmental stress. Measuring a standard CR80 size (85.5mm x 54mm), the smooth white surface is perfectly optimized for thermal dye-sublimation ID card printers. This allows human resources departments to print high-resolution employee photos, barcodes, and corporate logos directly onto the cloned access badge.

Pro Tip from Our Technicians

Our Sham Shui Po technical team wants to remind you that this T5577 Blank Card comes completely empty from the factory; it will not trigger any card reader until data is written to it. You must use a dedicated 125KHz RFID duplicator or cloner device to copy the serial number from an existing ID card onto this blank card. Furthermore, please ensure your original card operates at 125KHz, as this chip cannot clone 13.56MHz IC cards (like Mifare or Octopus cards).

Technical Specifications

Product Type: Rewritable Blank Proximity Card (RFID)
Chip Type: T5577 / 5200 (Rewritable)
Operating Frequency: 125KHz
Functionality: Read and Write (Copy/Clone capable)
Material: Waterproof PVC
Dimensions: 85.5mm x 54mm (Standard CR80)
Weight: 6.5g
Printing Compatibility: Thermal dye-sublimation ID card printers

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

What is the difference between this T5577 card and a standard ID card?A standard ID card (like the TK4100) is "read-only" and comes with a permanent, unchangeable serial number from the factory. This T5577 card is "rewritable," meaning you can use an RFID duplicator to copy the serial number from a standard ID card and write it onto this blank card.
Can I use this card to copy my 13.56MHz apartment access card?No, you cannot use this card to copy a 13.56MHz IC card. This card operates exclusively on the 125KHz low-frequency band. You must verify the frequency of your original access card before attempting to clone it, as the two technologies are not cross-compatible.
Do I need a special machine to write data onto this blank card?Yes, this card is completely blank out of the box and will not work on any door reader until programmed. You must use a dedicated 125KHz RFID cloner or duplicator device to read your original card and write its data onto this T5577 card.
Can I print my company logo on this card using a normal office printer?No, you cannot use a standard inkjet or laser office printer, as the ink will simply wipe off the plastic PVC surface. You must use a specialized thermal ID card printer (such as those made by Zebra or Fargo) to print permanent graphics onto these cards.
Can I buy these rewritable cards in bulk at your Hong Kong store?Yes, you can purchase these 125KHz T5577 Rewritable Cards in bulk quantities at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po. We supply locksmiths, property managers, and corporate IT departments with reliable RFID cloning accessories.

Target Users / Applications

Locksmiths & Security Techs: Providing on-the-spot duplication services for clients who have lost their 125KHz residential or office access cards.
Property Management Companies: Creating master backup cards or temporary contractor access badges that can be easily rewritten for the next user.
Corporate HR Departments: Cloning existing employee access credentials onto fresh, printable PVC cards to issue new photo ID badges without altering the backend software.

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125KHz T5577 Rewritable RFID Card | Blank ID Copy Badge