1, simplified interface, using 4-line SWD interface: VCC, SWDIO, SWCLK, GND, high-speed download simulation. 2, compatible with the traditional simulator, the function is completely consistent. 3, the use of universal micro-USB interface, easy to use (common Android phone universal interface). 4, support 3.3V output, maximum output 300MA current, convenient for users to debug and download the target board. 5, the onboard self-recovery fuse, effective short circuit protection, debugging more safe. 6, ESD protection device, more stable. 7, the firmware is stable, can be automatically upgraded, there will be no firmware damage phenomenon (full function firmware problems). 8, U disk size, convenient engineering is to carry on business trips. Function and performance Programming function: can burn FLASH ROM, EEPROM, AFR and so on. Simulation function: support full speed running, single step debugging, breakpoint debugging and other debugging methods, you can view IO status, variable data and so on. Programming performance: USB2.0 interface, SWD download, download fast! Simulation performance: USB2.0 interface for simulation debugging, single step debugging, breakpoint debugging, fast response! Colour:As shown Material:Plastic + Metal Package Contents: 1 x emulation debugger Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.