CP2104 Driver Requirements (Black Boards)
The latest version of the sniffer uses the CP2104 USB to Serial bridge and drops the SWD connector, allowing us to sell the boards at a significant discount compared to version 1.0. To use these boards, though, you will need to install the CP2104 VCP driver from Silicon Labs:
FTDI Driver Requirements (Blue Boards)
Before you can start talking to the sniffer, you'll need to install a standard FTDI driver for the FT231x located on the device.
Find the appropriate FTDI VCP installer on the FTDI Driver Download Page, install it on you system, and then insert the sniffer in any USB port on your system.