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Item #:
229340289
LEXI 20pcs Rewritable UID Smart Card, 13.56MHz Changeable RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control, Block 0 Sector
Item #:
229340289
GBP 17
Price Details
Price
GBP 17
Excluding Shipping, VAT & Custom charges ( Shipping, VAT and custom charges will be calculated on checkout.
If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )
In stock
Imported from USA store
QTY:
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Friday, September 11
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High quality RFID cards proximity door control access.
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What Stands Out
Rewritable Design
Each card can easily be rewritten, providing versatility for diverse access control needs and reducing waste compared to traditional single-use RFID cards.
High Frequency
Operates at 13.56MHz, ensuring reliable communication and compatibility with a wide range of RFID readers, enhancing security in door access systems.
Durable Material
Constructed from quality PVC, these cards are resilient against wear and tear, ensuring longevity and consistent performance even in high-usage environments.
Product Details
- Compatible with all kinds of door access control systems
- Supports read, write, and copy with over 100,000 rewrite times
- Each card has a unique encrypted ID number and can be reprogrammed
- Suitable for 13.56MHz card readers with a reading distance of 0-10cm
- Fully compatible with MI-FARE Classic 1K, 4-byte UID, and ISO/IEC 14443A protocol
- High-quality RFID cards for proximity door control access
| Power Source | Battery Powered |
| Connectivity Technology | Wireless |
| Alert Type | Motion |
| Voltage | 24 volts |
| Control Method | App |
| Maximum Range | 10 centimeters |
| Sensor Technology | RFID |
| Item Dimensions | 3.3 x 2.17 x 0.05 inches (8.4 x 5.5 x 0.1 cm) |
| Item Weight | 4.16 ounces (117.94 grams) |
| Unit Count | 20 Count |
| Color | White |
| Brand | Lexi |
| Built-In Media | 20pcs Rewritable UID Smart Card |
| Model Number | UID-20 |
| UPC | 191171075802 |
| Manufacturer | LEXI |
| Mfr Part Number | S601 |
| Installation Method | Self-Adhesive |
| Assembly Instructions Description | No assembly required |
| Item dimensions L x W x H | 3.3 x 2.17 x 0.05 inches (8.4 x 5.5 x 0.1 cm) |
What's in the box
20pcs Rewritable UID Smart Card
Who Should Buy?
-
Access Control Systems
Ideal for businesses implementing door access control systems requiring rewritable RFID solutions for enhanced security.
-
Event Management
Perfect for event planners needing customizable RFID cards for attendee check-ins, access tracking, and interactive experiences.
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Educational Institutions
Useful for schools to issue student ID cards that can be easily customized and rewritten as needed.
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Casual Users
Not suitable for individuals looking for a simple RFID solution without the need for reprogramming or customization.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is a rewritable UID smart card?
Answer: A rewritable UID smart card is a type of RFID card that allows you to change its unique identifier (UID) and data, making it versatile for various applications. These cards operate at a frequency of 13.56MHz and can be programmed for different uses, including door access control. This is particularly useful in environments that require customizable access rights, such as office buildings or educational institutions. -
Question:
What types of applications are these smart cards suited for?
Answer: LEXI's rewritable UID smart cards are ideal for scenarios such as access control systems, public transportation, events, and membership cards. Their programmability enables easy adaptation for security protocols, making them especially useful in organizations that require flexible access solutions. These cards can be tailored to meet specific security needs, enhancing safety and efficiency in managing access. -
Question:
How do I program these RFID blank cards?
Answer: Programming LEXI's RFID blank cards typically involves using compatible RFID writers and software. You'll need to connect the card to the writer, open the appropriate software, and follow the prompts to input the desired UID and data. Having a reader/writer device ensures that you can easily modify the card’s data whenever needed, providing a seamless user experience in managing access or information. -
Question:
Are these cards compatible with all RFID readers?
Answer: These 13.56MHz RFID smart cards are compatible with most readers that support the MiFare protocol, particularly those used for access control applications. Always check your reader specifications to ensure compatibility. If your organization already employs a MiFare system, integrating these cards will help you maintain continuity while enjoying the benefits of rewritable functionality. -
Question:
Can I use these cards for contactless payments?
Answer: While LEXI's rewritable UID smart cards are designed primarily for access control and similar applications, they can be adapted for contactless payment systems that utilize the same RFID technology. However, additional programming and security measures would be necessary to ensure secure transactions, making them versatile but requiring careful implementation for payment functionality. -
Question:
What does 'Block 0 Sector' mean?
Answer: The 'Block 0 Sector' refers to a specific segment in the memory structure of RFID cards where critical data, including the card's UID, is usually stored. In LEXI's cards, this area can be altered, allowing for changes in card identification. This feature is beneficial for organizations that frequently update access permissions or require dynamic card deployment in their operations. -
Question:
Is there a specific software I need to use with these cards?
Answer: Using LEXI's smart cards requires compatible software that can interface with RFID writing devices. Many users choose software that is specialized for MiFare programming. Ensure that the software allows for UID customization and data management, which provides flexibility in various applications like employee access or event ticketing, allowing for tailored solutions based on user needs. -
Question:
Can multiple cards be programmed at once?
Answer: Many RFID writers allow bulk programming of multiple cards simultaneously, depending on the device capabilities. Using specialized software in conjunction with a suitable writer can streamline the process, significantly reducing the time required to set up cards for mass deployment. This feature is particularly advantageous for organizations with numerous employees or members needing immediate access control. -
Question:
What is the material of these smart cards?
Answer: LEXI's rewritable UID smart cards are made from PVC, ensuring durability and a professional appearance. The use of PVC also allows for high-quality printing and personalization options, enabling organizations to brand their cards effectively. This is beneficial for applications where aesthetics matter, such as membership cards for clubs or loyalty programs, as they reflect the identity of the organization. -
Question:
Where can I buy LEXI 20pcs Rewritable UID Smart Card?
Answer: You can purchase LEXI's 20pcs Rewritable UID Smart Card from Ubuy. They offer a wide selection of RFID products, ensuring you have access to the latest in smart card technology, along with additional information and assistance regarding your purchase. Ubuy is a reliable platform for sourcing quality e-commerce products, making your shopping experience seamless.
Lexi Cards UID-20 Editorial Review
The Gen 1a Mifare Classic 1K Cards have garnered a mixed reception among users, with some praising their capability and others expressing frustrations regarding usability and compatibility. Many customers have found success in using these cards to create their own Skylanders, noting that they can write to all 64 blocks, which is a significant advantage over other options. The cards are especially appealing to hobbyists and tech-savvy users who are looking for an affordable solution for backing up their Skylanders or creating custom ones. However, not all experiences have been positive. Some users encountered difficulties getting the cards to work properly, particularly with the Wii U, where they faced issues with corruption and functionality, which led to a frustrating experience for those players. Additionally, while some reported that the cards were durable, others lost several during their attempts to write data to them. Importantly, some users highlighted that these cards are not block 0 rewritable, a fact that could be seen as misleading given some expectations based on product descriptions. Despite these challenges, many still recommend the cards for their unique capabilities, particularly for those comfortable with technology and willing to troubleshoot potential issues. **
Customer Reviews & Ratings
68 customers ratings
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5 Star
70%
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4 Star
11%
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3 Star
2%
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2 Star
9%
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1 Star
8%
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Pros
- Flexible usability for creating custom Skylanders cards.
- Ability to write to all 64 blocks, advantageous for advanced users.
- Affordable option for hobbyists.
Cons
- Some cards broken or malfunctioning during use.
Platform Trust & Buyer Confidence
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Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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“The delivery was fast and the product came undamaged and authentic.”
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25 August 2026 · via Trustpilot
HL
Hengo
Verified buyer
“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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GBP 17
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Friday, September 11
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Suitable for 13.56MHz card reader and reading distance is 0-10cm.
- Widely used at apartment, office, park and other places.
- Read, Writable and Rewrite. Waterproof.
- Working frequency is 13.56MHz. Compatible with all kinds of door access control system.
- Support read, write and copy, over 100, 000 rewrite times.
- Fully compatible to MI-FARE Classic 1K,4-byte UID, 1K Byte memory, organized in 16 sectors of 4 blocks, compliant to ISO/IEC 14443A protocal.
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