The pcProx is a 125 kHz RF proximity reader that extends the use of existing proximity cards for identification and authentication beyond physical security. Operating as a USB device, it emulates a keyboard and sends card data as keystrokes to applications accepting keyboard input. The reader supports Windows, macOS, and Linux without requiring additional drivers. It features configurable output options, including card data formatting, separator definitions, and character appending for integration with third-party applications. The device enables application log-on, form filling, PC/LAN logon, machine access, and time/attendance tracking, making it a versatile solution for proximity card usage in workplace environments.