HID Global Cards

HID Card 2 transparent

What are HID iClass cards?

iClass cards allow you to combine contactless smart technology with a contact chip and/or a magnetic stripe. iClass contactless smart cards feature 13.56 MHz read/write contactless high-speed communication. Choose 26 bit (H10301) format, 37 bit (H10302) format or 35 bit Corporate 1000 format cards and configure your programming options.

HID Global’s iCLASS® Seos™ smart cards are built on a secure, open technology to manage and authenticate identities. The cards primarily address the need for securing identities for the physical access control solution (PACS) market and applications, including One-Time Password authentication (OTP) for login into networks and signing.

iCLASS Seos cards are for organizations requiring with stringent security requirements for their credential solution, that is cost-effective. The cards deliver superior data integrity and privacy protection by leveraging the latest cryptographic algorithms. iCLASS Seos cards utilize a secure messaging protocol to protect data transmission, providing strong authentication protecting the communications between card and the card-reader.

Providing maximum interoperability, iCLASS Seos cards use a standards-based application providing Universal Card Command Interface. An ISO/IEC 7816-4 command set and data model defines the supported interfaces between an iCLASS Seos card and the reader.

iCLASS Seos cards provide trusted management of secure identities within HID Global’s iCLASS SE platform.

The iCLASS SE platform manages the secure distribution and life span of credentials. iCLASS Seos supports multiple SIOs carried on a single credential/device to secure PACS (along with any other application data). This enables applications to provide individual protected data sets for the identities in each application.


  • Strong authentication – Enterprise-ready converged card for securing physical access and user access to IT resources.
  • Increased interoperability – Open, standards-based solution supports future technologies.
  • Technology-independent security – Multi-layered security built on the portable Secure Identity Object (SIOs®) data model.
  • Heightened privacy protection – No traceable identifiers exchanged during card reading.

26 bit iClass cards

  • Are also known as format H10301 cards, 26 bit cards are the most common type of proximity card
  • When placing an order for 26 bit H10301 cards, specify your facility code and your card start number
  • You are in complete control of tracking the card numbers used in each of your facilities
  • There is a risk of duplicating card numbers in 26 bit cards, especially when multiple locations place card orders or staff changes

37 bit proximity cards

  • Are also known as format H10302 cards
  • Because HID manages the card numbers, you don’t need to specify facility code or card start number
  • HID controls card numbering, guaranteeing that card numbers are never duplicated across all 37 bit cards
  • You will be ensured that no card numbers are ever duplicated
  • Note: card numbers will be sequential on a single order, but there will be gaps in numbers across your entire inventory of cards

40 bit proximity cards

  • Are also known as Casi Rusco format C10106 cards.
  • Because HID controls card numbering, you do not need to specify start numbers.
  • Since HID controls card numbering, there is no risk of duplicating card numbers.
  • Note: card numbers will be sequential on a single order, but there will be gaps in numbers across your entire inventory of cards