Features: The STLink V2.1 Emulator effortlessly converts files to Gcode, offering seamlessly compatibility with various models for online debugging and USB drag and drop aging. Featuring easy firmware updates through the upgrading program, this emulator ensures remaining up to date, integrating smoothly with popular IDE for efficient functional programming. For electronic engineers and embedded developers, the STLink V2.1 is a powerful tool to meet the demands of professionals working on development and serial port emulation. Perfect for embedded system development, this powerful emulator is suitable for both mobile projects and in depth debugging using virtual serialed port. With its convenience, the STLink V2.1 eliminates the need for additional software, making it essential accessory for anyone to streamlines their development process in computer and office setting. Specifications: Model: STLink V2.1 Emulator Output：3.5V 5V Compatibles Various models Connection： type C Size：about 30x45x10mm/1.18x1.77x0.39in Support SWD debugging and virtual serial port Package Includes: 1Set STLink V2.1 Emulator note: Due to problem of lighting effect there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.