, high quality After downloading and unzipping the three folders, copy them to the software folder. Why is the HT42B534-1 USB to TTL module recommended for downloading the LGT8F328P module?The built-in RC of the main HT has higher accuracy, and the 12M oscillator reaches 0.25%, so the download success rate is higher and the download is more stable under the same conditions! If you use other built-in RC USB to TTL, please pay attention to it, if you frequently download unsuccessful, you can use this section to solve the problem! Note: this model uses CH9340C/CH340C serial chip,LGT8F328P external 16M crystal oscillator version! Note: Please contact customer service about download or installation information before placing order. Colour:Photo Color Material:PCB Package Contents: 1 x board CH340 driver 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.