USBPcap 1.5.4 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The latest version of USBPcap can be downloaded for PCs running Windows XP/Vista/7/8/10/11, both 32 and 64-bit.
The most popular versions among the software users are 1.5 and 1.2. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
The actual developer of the free software is Tomasz Moń. The common filenames for the program's installer are hpzstub.exe, Power_Control.exe, USB.exe, USBPcapCMD.exe or USBVerUp.exe etc. The program lies within Internet & Network Tools, more precisely Network Tools.
From the developer:
USBPcap is an open source traffic packet capturing tool that can be used with any USB device. You can specify the devices you want to monitor and save the results to a PCAP file. The program is easy to install and configure, but requires a computer restart for the filter control devices to be properly detected.
You may want to check out more software, such as FlashFXP, DC++ or Advanced Port Scanner, which might be similar to USBPcap.