1, simplified interface, using 4-line SWD interface: VCC, SWDIO, SWCLK, GND, high-speed download simulation.2, compatible with the V8 simulator, the function is completely .3, the use of universal -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 board.5, the new onboard self- 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 V8 firmware problems).8, U disk size, convenient engineering is to carry on business trips.Function and performanceProgramming 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 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 shownMaterial:Plastic + MetalPackage Contents:1 x emulation debuggerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.