The STlink-V3Minie is an easy-to-use portable miniature emulation downloader for debugging and programming of miniature probes for the STM32 microcontroller, with a JTAG/SWD interface for communication with the STM32 microcontroller, while providing a virtual port interface for the PC to pass through a UART Communicates with the microcontroller. 15.24mm x 43.47mm stand-alone debug and programming probe for STM32 microcontrollers Self-powered via USB Type-C connector USB 2.0 high-speed interface Update probe firmware via USB. Features: Optional drag-and-drop flash programming of binaries Communication bi-color LED JTAG communication supports up to 21 MHz SWD (Serial Wire Debug) and (Serial Wire Viewer) communication support up to 24 MHz Virtual Port (VCP) up to 15 Mbps 1.65 to 3.60 V application voltage support. size: 43.47 x 15.24MM : PCB colour: blue Package Contents: 1 x STLINK-V3MINIE kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.