It combines the classic technology, HID Prox, which operates at a frequency of 125KHz and includes a unique identifier that cannot be modified, with the HID iClass® technology operating at 13.56MHz. The latter has the advantage of giving access to write information, thus allowing content modifications. Moreover, it is possible to store a set of data and not a unique identifier. The data on this card is encrypted and is also protected against cloning thanks to the Seos™ technology.
The HID iClass® Seos™ + HID Prox Card has a CR80 (blue card) format and is customizable.