AirDrive Pro/ MAX WiFi keylogger for intercepting all kinds of logs from USB keyboards
Can you install a keylogger on your modem, your router, or your internet connection to record all the keystrokes of all the PC and devices connected onto it? - Quora
Hardware Keylogger - AirDrive Keylogger
What is a Keylogger and How Can I Detect One on My Computer? | Sophos Home
Guide to the Best USB Keyloggers for 2021 - Nerd Techy
Can you install a keylogger on your modem, your router, or your internet connection to record all the keystrokes of all the PC and devices connected onto it? - Quora
AirDrive - USB keylogger, RS232 logger, ethernet, audio monitor