Mini Metal Epoxy Drop Elevator Card, CUID Access Control Card, IC Copyable Blank Card with Firewall Penetration, M1 Key Fob

Brand: Asiali  

Specification: Diameter 25 mm  

Data Retention: 10 years  

Encapsulation Material: Metal Ring/Epoxy Resin  

Write/Erase Life: More than 100,000 cycles  

Application Range: Access control cards, elevator cards, attendance cards, membership cards, community entry cards, smart locks, fingerprint locks, etc.  

Type: Smart Card  

Read/Write Method: Contactless IC Card  

Application Field: Non-financial cards  

Product Features: Firewall Penetration Function

Purchase Notes:

1. This link is for an IC-CUID smart sensing card with a metal edge design, supporting duplication using a key-copying machine. It cannot be used directly.

2. IC-CUID cards feature firewall penetration and anti-duplication functions, but they are not universal cards. Typically, after successfully copying with an IC-UID card, the card might become ineffective or unresponsive after several uses. In such cases, an IC-CUID card may be used as a solution.

3. If you don't have the equipment, you can contact online customer service for card configuration services.

Differences between CUID/UFUID/UID/FUID:

1. Similarities: All belong to IC copyable cards.

2. Differences:

   - UID: A standard IC copyable card, rewritable, without firewall penetration.

   - CUID: A second-generation firewall card, rewritable after formatting, but some systems cannot be penetrated.

   - UFUID and FUID: Enhanced firewall cards, only writable once, with stronger penetration, locking the information as original card data.

New Generation IC Thin Card IC-CUID Key Card with Firewall Penetration Function

Notes to Buyers:

- This product is an IC copyable card, which can be used with a copying machine for read/write or after adding the card to property settings. It cannot be used directly.

- It is suitable for access control, elevator, parking, attendance, and other fields.

- A new generation of erasable and rewritable anti-shielding CUID cards, which can be reused (requires special equipment for formatting) instead of one-time FUID or UFUID cards.

- Greatly reduces costs, cost-effective, and improves product utilization.

Key Points:

1. The card is fully compatible with Mifare 1K cards.

2. Block 0 of the card (where the UID is located) cannot be modified using mobile phone NFC.

3. Block 0 can be directly modified using a standard Mifare reader/writer.

4. The default password of the card is 12 F (FFFFFFFFFFFF).

When to Use a CUID Card?

Answer: Many systems are now equipped with anti-duplication and special encryption functions. After using a standard UID card, it may fail to open doors or become ineffective after several uses. In such cases, a CUID or FUID card with special chip configuration is required. The CUID card also offers a rewritable function, requiring a device that supports formatting.