1
Open explorer
2 Right
click on my computer then click on
the properties
3
System
properties will appear like this
one, klik on hardware tab, and then
click on Device Manager Button
4
Click at the ports (COM and LPT) à Prolific usb to serial
(COM 8), double click there
5
This usb
to serial comport properties will be appearing like the picture below,
click on port settings tab :
6
Click on
port setting tab, then click at the advance
button :