Support for the complete range of STM32 SWD interface debugging with a simple interface (including power supply), 4 line speed, and reliable operation; the interface definition shell directly addresses the need to read instructions. Supports automatic firmware upgrades, with the firmware pre-installed to the latest version V2. The J17. S4 increases the 5V power output, providing protection for the I/O port, preventing damage from errors related to certain debugging interfaces. The easy-to-use interface features pure copper plating with 2.54 spacing; it comes with a 20 cm cable for various board line sequences, allowing flexible connections. The mainboard is protected by an aluminum alloy shell, making it convenient to carry and resistant to static electricity and drops. Supports all STM8 SWIM series for downloading and debugging (compatible with common development environments such as IAR, STVD, etc.). Compatible software versions include: Utility 2.0 and above, STVD 2 and above, STVP 3.2.3 and above, IAR EWARM V6.20 and above, IAR EWSTM8 V1.30 and above, KEIL RVMDK V4.21 and above. Color: random colors, no option for a specific color. Material: plastic + metal. Package Contents: 1 * Voltage Regulator (note: random color, no option for a specific color) 1 * wire Only the items listed above are included; other products are not included. Note: Lighting and different displays may cause the color of the item in the image to differ slightly from the actual product. Measurement error is permitted at +/- 1-3cm.