HID 2120BGGNNN Composite iClass Prox 2K/2 Credential
When you need a cost-effective credential that bridges legacy 125 kHz prox systems with newer iClass infrastructure, this composite card delivers both technologies in a single, durable form factor. The HID 2120BGGNNN combines 26-bit proximity with iClass 2K memory, letting you migrate access control systems without immediately replacing every reader or re-credentialing your entire workforce. It's a practical solution for phased upgrades where budget and operational continuity matter as much as security improvements.
Key Features
- Dual-technology design supports both 125 kHz proximity and 13.56 MHz iClass communication protocols
- 2K bit (256 byte) memory configuration provides secure credential data storage with mutual authentication
- Composite construction offers improved durability over PVC alternatives for high-traffic environments
- Standard CR80 credit card dimensions (2.125" × 3.375") with graphics-ready surface for photo ID badging
- 26-bit H10301 format compatible with most legacy Wiegand proximity systems
- iClass technology supports encryption and secure application areas for logical access or cashless payment
- Sequential numbering available for simplified credential management and audit trail requirements
The composite substrate construction makes these credentials significantly more resistant to cracking and warping than standard PVC cards—important for credentials that get worn daily on lanyards or repeatedly inserted into card printers. You can hot-stamp, laser-engrave, or use direct-to-card printing for visual identification without compromising the embedded RFID performance. The dual-frequency capability means your existing prox readers continue working while new iClass readers authenticate the same credential with stronger encryption.
This credential format suits installations where security policies are tightening but complete infrastructure replacement isn't feasible. The iClass portion supports multiple applications on a single card—physical access through one door, logical network login, and even cafeteria debit if your system architecture supports it. Deploy these where you need backward compatibility today and forward security tomorrow, particularly in corporate campuses, educational facilities, or healthcare environments managing thousands of credentials across mixed reader populations.
