CH340 USB to Serial Port Adapter Drivers
I recently had a need to purchase a USB to Serial Port (RS-232) converter for my computer. Checking around my local stores, online and on eBay, I found a number of low cost converters, which all appeared to physically resemble each other very closely, but varied significantly in price…
So I decided to try a low cost unit, similar to this one…

USB to Serial Adapter.
Included with this cable, was a small CD which contained the drivers required to make this adapter work. I quickly learned that this CD was Non-Functional. A quick online search revealed that in fact a lot of these CDs (if not all of them) are non-functional. No wonder the cable itself was so cheap…
My online search revealed that the cable itself used a CH340 family USB IC manufactured by “WinChipHead” in China.
To aid those of you who have also purchaced this same adapter cable, and received a deffective Driver CD, I’m posting here some ZIP files containing the drivers I found online for this adapter cable. These llinks will let you download the most recent drivers available for this cable.
Please note that some of these cables are Vista compatible, and some are not… After downloading the archive, please select the driver for the operating system you plan on using this cable with.
If these drivers solve your problems, please consider making a Pledge of Support on my behalf to the cause I’m currently cycling for…
Thank You.