HID 2120BGGRVR Composite iClass Prox 2K/2 Credential
When you're deploying dual-technology access control across facilities with mixed reader infrastructure, credential compatibility isn't optional. The HID 2120BGGRVR combines 13.56 MHz iClass and 125 kHz Prox technology in a single composite card, letting you migrate systems without ripping out legacy hardware or forcing users to carry multiple credentials during transition periods.
Key Features
- Dual-technology credential supporting both iClass (13.56 MHz) and HID Prox (125 kHz) in one card
- 2K bit (256 byte) memory configuration with two application areas for segmented data storage
- Composite PVC construction offers balance of durability and cost for moderate-use environments
- Standard CR80 credit card dimensions (2.125" x 3.375") fit existing card printer stock and holder systems
- Compatible with HID iClass and legacy Prox readers without firmware changes
- Supports secure mutual authentication between card and reader on iClass side
- Printable surface accepts dye-sublimation and thermal transfer for photo ID badging
This card solves the upgrade path problem that stalls access control modernization projects. You're not forced into a flash-cut migration where every reader gets replaced on the same weekend. Instead, you can upgrade high-security areas to iClass readers first while legacy Prox readers continue operating with the same credential. The 2K/2 memory structure gives you room for multiple applications—physical access on one segment, logical access or cashless vending on another—without requiring separate cards or tokens.
The composite construction handles daily pocket wear and occasional card printer runs without the brittleness of pure PVC or the premium cost of polyester composite. For office buildings, light industrial sites, and educational campuses where cards see regular but not abusive use, this material spec hits the durability-to-cost sweet spot. Pair with HID encoding software and a networked access control platform that recognizes both credential formats, and you've built flexibility into the system that pays dividends when the next technology shift arrives.
