(often stylized as ezProx or EZProx) is a leading line of contactless proximity card readers widely used for access control systems in office buildings, data centers, and government facilities. These readers, often models like the RP40 , RPK40 , or R90 , rely on Wiegand or OSDP protocols to communicate with a host system. However, before any credential—be it a key fob, smart card, or NFC tag—can be read, the correct driver must be installed on your host computer or control panel interface.

Ensure there are no yellow exclamation marks under "Smart card readers" or "Universal Serial Bus controllers". Dangerous Things Forum 4. Software & Integration PC/SC Support:

: Right-click the file and select Run as administrator . Follow the on-screen prompts to complete the setup. Verify Connection : Open Device Manager by right-clicking the Start button.