Discontinued — No Longer Available New
This model has been discontinued by HID. Shop current HID products → or see the recommended alternatives below.
HID 921-PTNN MultiCLASS SE RPK40 Keypad Proximity Reader
The HID 921-PTNN RPK40 is a dual-authentication wall-mounted proximity card reader and keypad designed for enterprise-grade access control. Combining PIN entry with proximity card reading, this black reader delivers flexible, secure credential verification for modern facilities requiring multi-factor authentication without compromising operational efficiency.
Key Features
- Dual-authentication system—keypad PIN and proximity card reader in one device
- Broad credential support: iCLASS Seos®, iCLASS SE, iCLASS®, MIFARE® Classic, MIFARE DESFire® EV1, and additional technologies
- Dual-frequency operation: 13.56 MHz (high frequency) and 125 kHz (low frequency)
- Supports multiple credential formats: cards, fobs, and mobile devices
- Intelligent power management reduces consumption by up to 59%
- Open Supervised Device Protocol (OSDP) communication for seamless system integration
- Environmental Product Declaration and Green Circle certifications
Technical Highlights
The RPK40 operates across dual frequency bands, enabling compatibility with both legacy 125 kHz systems and modern 13.56 MHz high-frequency credentials. Its intelligent power management technology significantly reduces operational costs while maintaining always-on security performance. The device integrates OSDP communication standards, ensuring reliable, secure data exchange with access control panels and management platforms across diverse IT infrastructures.
Applications
Ideal for corporate offices, data centers, laboratories, hospitals, government facilities, and any environment requiring layered access control. The combination of keypad and proximity reading provides flexibility for high-security zones, temporary credential issuance, and audit trails. Multi-technology support eliminates the need for credential replacement during system migrations.
The 921-PTNN addresses a critical gap in access control: the need for backward compatibility without sacrificing modern security standards. Its dual-frequency, multi-credential architecture makes it particularly valuable for enterprises managing mixed-generation infrastructure. The 59% power reduction through intelligent management translates to lower total cost of ownership in large deployments.
OSDP support ensures future-proof integration with third-party systems, reducing vendor lock-in risk. Environmental certifications reflect HID's commitment to sustainable manufacturing—a growing requirement in corporate procurement policies.
