Apr 13, 2013

HL-340 usb to serial driver for windows 7 64 bit (CH341SER.EXE)

Instructions for Installing the USB driver onto your computer:
  1. Turn on computer and make sure USB port is available.
  2. Plug in USB connector to USB port.
  3. The "Add New Hardware WIzard" should appear (if not, then you can open the wizard from the Control Panel)
  4. Click "Next"
  5. Select "Search for the best driver for your device"
  6. Click "Next"
  7. Windows will ask you to specify the location of the driver. Please select "Specify a location"
  8. Use "Browse" to find the driver in the CD-ROM drive (or wherever the file is located on your hard drive)
  9. Click "Next"
  10. You're done
I used Windows 7 32bit and this driver works for me, you can download from this link.

Having problems using your USB adapter?

Problem: I can't transfer any data, or my map software doesn't see the USB adapter.

The most common issue when installing the USB adapter and driver is selecting the correct port for your map software to recognize.

You must make sure your particular software is looking on the correct port for it to transfer any data.

To see which port your USB adapter is connected to, connect your USB adapter and follow the following instructions:
  1. Go to the Start Menu
  2. Right click on "My Computer"
  3. Select "Properties"
  4. Click on the "Hardware" tab
  5. Click on "Device Manager"
  6. Click the + sign next to "Ports (COM & LPT)"
  7. One of the listed ports should indicate which port your USB adapter is connected to (e.g. COM1, COM2, COM3, etc.)
  8. Go back to your map software program that you use to transfer data and make sure it is looking at the correct port.
  9. You should be able to transfer data once the correct port is selected
Files have been zipped to save space and shorten download time. If you do not have an application to unzip the files, you can download one at www.winzip.com

Additional USB to Serial Adapter - Driver Downloads and Documentation
  • Gilsson USB to Serial Adapter Windows Drivers
Windows 7 32-bit/64-bit driver
Windows vista 32-bit driver
Windows vista 64-bit driver
Windows XP drivers and documentation
Windows 2000 drivers and documentation
Windows 98 or ME drivers and docs


HI you try the same cable in Windows 7 64 bits? i get the install with no problems but i connect the cable to a pos display bematech bdp-100 or dynapos and never get the text right, any ideas? thanks

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