Key benefits - Easy STM32 SWD debugging: supports the STM32 SWD interface with a simple interface that includes power supply, enabling straightforward setup and debugging on target boards. - Flexible and compatible: features a 2.54 mm pure copper spacer header with a 20 cm cable, allowing flexible connections and compatibility with different target boards. - Automatic firmware updates: firmware automatically updates to the latest version (V2) for the J17 S4, reducing maintenance effort. - Enhanced protection and power handling: increases the power output by 5V and protects the E/S ports, helping prevent damage to ST-LINK V2 during use. Key features and specifications - Interface and wiring: supports STM32 SWD debugging, with a simple interface including power supply; 4-line configuration for SWD connections; direct plug-and-play shell interface definition requiring no extra instructions. - Material and size: 2.54 mm pure copper spacer header; 20 cm line for flexible reach and easy board-to-board connections. - Firmware: automatic firmware update support; latest version at update time is V2 for the J17 S4. - Power protection: output power increased by 5V; protects the E/S port to avoid failure or damage to ST-LINK V2 during operation. - Model: J17 S4. 2-3 use scenarios - STM32 development and debugging: connect quickly to various STM32 target boards using the 2.54 mm header and 20 cm cable; leverage the SWD interface for efficient programming and debugging without complex setup. - Prototyping and testing: use with different target boards to test firmware and peripherals in a flexible lab environment; the 5V power output and E/S protection help safeguard equipment during rapid iteration. - Education and training: students or new engineers can learn SWD debugging with a straightforward, plug-and-play setup that does not require additional instructions. Notes - The description preserves the original model and functions: STM32 SWD compatibility, 2.54 mm pure copper spacer header, 20 cm connection line, automatic firmware updates to V2 for J17 S4, 5V power output increase, and E/S port protection for ST-LINK V2.