Support STC official website to update and download software.Support STC MCU 3V or 5V MCU series models, online programming.Support direct external USB online burning with computer.After downloading offline files on the computer, you can leave the computer to burn offline online.Protective function: electrostatic protection, voltage surge protectionIO port level conversion isolation measures, no streakingHardware protection: prevent large capacitance, pull down the computer USB power supply or external power supplyReverse insertion protection: After the software detects the reverse insertion, it automatically cut off the power supply, and the flashing light indicate reverse insertion or short circuit.Acrylic sheet: Bottom and top plate protectionSpecial note: Offline download supports continuous power supply after downloading (the board has button settings, and the settings are saved when power off)Due to different product batches, the appearance , which does not affect the useColour:As ShownMaterial:plasticPackage Contents:1 x burn and write programmer KitOnly 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.