– Support SWD interface: support mainstream software debugging and program download, support most chips of COTEX_M core series– Support virtual serial port: can replace USB to TTL tools such as CH340/CP2102/PL2303, and support program debugging and serial port LOG output – Support all chips with Cortex-M core Specification: Supported Chips: All chips based on Cortex-M core Operating system: windows, linux Debug interface: SWD, virtual serial port Input voltage: 5V (USB powered) Output voltage: 5V/3.3V Product size: 49*1 8mm