This is fully assembled and tested OpenVizsla v3.4 USB protocol analyzer.OpenVizsla is a bus sniffer/analyzer for USB. It allows you to passively monitor the communication between a USB host and USB periheral. It supports USB low-speed, full-speed and high-speed.The product is shipped as a bare printed circuit board assembly, without any enclosure.For more information about OpenVizsla, see https://openvizsla.org/Development after version 3.2 has been carried out here: https://osmocom.org/projects/openvizsla/wiki (repo: https://github.com/OpenVizslaTNG/ov_ftdi).