USB Monitor 

Monitors, records, and analyzes all the data that's being transferred between your computer's hard-disk and the devices connected to your USB ports. Useful for USB and HDD hardware developers and manufacturers as well as for developers who are creating USB-related software.

Software USB port sniffer, monitor tool with protocol analyzer and data logger. This Universal Serial Bus monitoring utility can spy, capture, view, log, analyze, test usb device activity performing connection traffic analysis with data acquisition and control. You can use this USB aquisition system as connection testing and diagnostic tool, modem data transfer viewer, packet analyser, interface tester and so on. USB Monitor can be successfully used for monitoring data flow between USB devices and Windows application, debugging port connections, developing, reverse-engineering and implementing protocol, device driver development, hardware development, research the functionality of any third-party software and hardware, testing software and hardware. USB Monitor can be successfully used by programmers, beta-testers, software developers, hardware engineers, IT support specialists, industrial control personnel, SCADA software engineers, science technicians, systems integrators, consultants, lab experts, University students.