How to increase the COM port speed

After several days, the Data Reading speed on the COM port has not been adjusted. Khan, I still did not take my work seriously until this morning, teacher Meng opened the computer attribute settings for me to know. In fact, I used to go to that setting page. Teacher Meng also told me that I would probably set it in that place. For example, there is water in a three-meter underground area, but I stopped when I only dug two or nine meters. I thought there was no water. I cannot find it online.

Set COM port speed: Open the Device Manager and double-click the port number. In the displayed Properties dialog box, select "Port Settings"-"advanced"-"BM options" and select "1 ".