Support the full range of STM32 SWD interface debugging, simple interface (including supply), 4 line speed, stable work; Interface definition shell directly address! 't need to read instructions! Support the firmware upgrade automatically. When they leave the firmware has been upgraded to the latest V2. The J17. S4. Increase the 5 v output, the output it can the I/O port, not afraid of error damage of ST - LINK V2! Easy interface to pure copper plating 2.54 spacing horn, with 20 cm line, can deal with different board line sequence, flexible connection; U disk aluminum alloy shell to the mainboard, convenient to carry, not afraid of static , not afraid of tumbling. Support all series STM8 SWIM download debugging (common development environment such as IAR, STVD etc.) are supported. Support the software version is as follows: ST - LINK 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 Colour: random colors, 't accept the specified color Material: plastic + metal Package Contents: 1 * Voltage Regulator (note: random color, 't accept the specified color) 1 * wire Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.