XSF 26Bit Format. Family Code #1 with our choice of HEX Code and Number Range.

The RapidPROX® IOPROX Key Fob is a durable, high-performance 125 kHz proximity key fob designed as a cost-effective alternative to the Kantech P40KEY credential. Fully compatible with Kantech ioProx systems using XSF 39-bit format technology, this compact fob delivers consistent read range, reliable performance, and seamless integration with existing access control systems. Proudly made in the USA, RapidPROX key fobs are built with rugged materials to withstand daily wear and tear, making them ideal for high-use environments such as commercial facilities, campuses, and industrial sites. With fast turnaround, custom encoding options, and dependable quality, the RapidPROX for Kantech key fob provides a proven replacement solution for P40KEY credential—delivering ioProx-compatible performance at a significantly better value.

• Compatible with Kantech 125kHz ioProx systems
• Supports XSF 39-bit format technology
• Made in the USA for superior durability
• Custom encoding available
• Same-day shipment from South Carolina
• Ideal for commercial and industrial use