🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★½
Price
$22.43
20pieces- UID Changeable RFID Writable Programable Keychain,13.56MHz RFID Uid Changeable Block 0 Writable Tag Fobs, IC Card Access Control Smart Keyfobs Key Tags - Black — image 1
RFID SuppliesJIAXING✓ In stock

20pieces- UID Changeable RFID Writable Programable Keychain,13.56MHz RFID Uid Changeable Block 0 Writable Tag Fobs, IC Card Access Control Smart Keyfobs Key Tags - Black

$22.43
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About this item
  • 【Perfect Size】The package includes 20PCS UID card. The size of card is 40*32*3.6mm. Frequency: 13.56 MHz, Rewrite Times: 100,000 times.
  • 【UID Card】0 Sector 0 block can be modified. This card works the same as normal IC cards. Works exactly like the S50, with 16 Sectors and 4 Blocks each Sector, but the Sector 0 Block Zero known as Manufacturers Block where the chip UID is stored, can be reprogrammed to any UID you wish.
  • 【High Quality】The UID key fob is made of high-quality ABS material, the shell is strong and durable, has good waterproof, shockproof and anti-corrosion performance.
  • 【Widely Application】This UID cards can be applied to Access control, hotel locks, school campus access, identification and security systems. This is a perfect solution for a lost irreplaceable IC Cards ID, you don't need to re-enroll new cards. Just program this new UID to the UID of lost card then you have a new Exactly the same card.
  • 【Quality Assurance】If there is any quality problem, we can provide free return service, brings you worry-free shopping experience.
Product description

UID Changeable RFID Writable Programable Keychain, IC Card Access Control Smart Keyfobs UID Card Details: Color:Black Shape:Round head Size: 40*32*3.6mm Material: ABS Operating Frequency: 13.56 MHz Rewrite Times: 100,000 times Reading Distance: 0-10 cm Features: High quality access to door control for RFID cards. Widely used in homes, offices, parks and other places. 0 Sector 0 block can be modified. Works exactly like the S50, with 16 Sectors and 4 Blocks each Sector, but the Sector 0 Block Zero known as Manufacturers Block where the chip UID is stored, can be re programmed to any UID you wish.

Product details
Brand
JIAXING
Manufacturer
JIAXING
Colour
Keychain4
Size
20PCS Black

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 12 of 10 reviews

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