HID iCLASS Smart Card credentials operate at 13.56 MHz and are available across multiple series and form factors, including 1430 (1L) plain PVC cards in thin and thick formats, 2000 series clamshell cards, 2120 and 2122 iCLASS + Prox multi-technology cards, 2123 high-memory iCLASS cards, and 3000 series iCLASS SE credentials, with commonly used model and part numbers such as 1430NG1NN, 1430NGGNN, 1430SGGMN, 1430PGGMN, 2000HPGGMN (clamshell), 2120BG1MNN, 2122BG1MNN, 2123BG1MNM, and 3000PG1MN, all designed for compatibility with HID iCLASS readers and controllers; final suffixes may vary based on options like plain or printed PVC, magnetic stripe, numbering format, slot punch, or custom artwork.
