Feature: 1. Simplified the interface, using 4‑wire SWD interface: vcc, swdio, swclk, gnd, can download emulation at high speed. 2. With USB communication function, it can communicate with PC, and the other end communicates with supported devices through SWD/JTAG method to complete the debugging simulation download debugging task. 3. Compatible with traditional for V8 emulators, with exactly the same function. Universal micro USB interface, easy to use (common interface for Android phones). 4. Support 3.3V output, maximum output current of 300MA, convenient for users to debug and download the target board. 5. Onboard self-recovery fuse, effective short circuit protection, safer debugging. ESD protection device, more stable. Small and portable, easy to carry. Specification: Item Type: Programmer Downloader Material: PCB Output Voltage: 3.3V Maximum Output Current: 300mA Programming Function: Can programme for FLASH ROM, for EEPROM, for AFR, etc. Simulation Function: Supports various debugging methods such as full-speed operation, single-step debugging, breakpoint debugging, etc., and can view for IO status, variable data, etc. Programming Performance: Using USB2.0 interface, SWD download, fast download speed Emulation Performance: Using USB2.0 interface for simulation debugging, single-step debugging, breakpoint debugging, quick response speed Purpose: Suitable for operation learning and development of college students, engineers, technicians, factories, DIY, electronics enthusiasts, etc. . Package List: 1 x Module1 x Data Cable