HID proximity cards feature a graphics quality surface optimized for Photo ID printing and come available in standard PVC or a composite polyester/PVC construction for more demanding high wear and tear environments. Kantech Secure Format (KSF) HID readers recognize over 16.7 million unique codes using Kantech's KSF cards to provide increased security and prevent against card duplication.

The K11101 (KSF 32-bit) format is a proprietary credential format developed specifically for Kantech systems, designed to provide a higher level of security and scalability than standard open formats like 26-bit. Unlike traditional formats where facility codes and card numbers can be duplicated across different organizations, Kantech Secure Format (KSF) uses a controlled numbering system managed by the manufacturer. 

The K11101 format is part of Kantech Secure Format (KSF), which is a proprietary encoding scheme, not an open Wiegand format like H10301.

• Designed specifically for Kantech systems
• HID/Kantech controls the numbering scheme
• Customer cannot request encoding
• Cards are issued sequentially to prevent duplication
• KSF supports over 16.7 million unique card numbers.
• K11101 (32-bit) → millions of unique IDs