50 Bit Wiegand RBH50 Card FormatNubianProx Credentials to RBH Access. Compatible to AWID 50bit RBH 50 PVC Cards. RBH 50Bit Clamshell card, RBH 50 ID Key fobs, AWID proximity Tags 50bit BRH 50 Format. Proximity cards are available in a wide range of styles, so you can pick the card type that will work best for your organization: Standard PVC cards ; Composite cards; Printable PVC or composite cards; Clamshell cards; Cards with magnetic stripes; Key fobs; Adhesive tags; Wristbands