May 23, 2014  CH340 usb-serial Windows 7 64 bit drivers. Maraldmec Friday, June 11, 2010 5:36. Thanks for posting this, but unfortunately I could not get this driver to work. Windows 7 x64 still complained that it could not verify the signature of the driver, and it disabled the device. I even tried uninstalling the device and reinstalling, just to make sure. Usb-serial ch340 drivers download, download and update your Usb-serial ch340 drivers for Windows 7, 8.1, 10. Just download now!

For many of these, Win-7 will recognize it automatically and load drivers with no further to-do. Some off-brand stuff may come with its own driver CD to load. You should know that there is a lot of junk/knock-off/counterfeit USB-serial stuff out there that doesn't work very well. Even if you get a driver to work, they frequently have comms problems.

Personally, I'd return it and get something better. Air-link, IOgear, SIIG makes good stuff. Other brands may be OK as well if they use the FTDI / prolific chipsets but its hard to know. There are some long threads here discussing the problem. After messing around with a few bummers, I finally went with a PCI-E 4X serial board from SIIG. Works perfectly all the time with Win7-64 Pro.

Introduction: Download windows driver from here. Automatic installation: If you are connected to internet, just plug CH340 USB to serial converter to your computer, windows will detect and download driver. You will see following message on successful installation.

CH340 is installed on comport 23. Manual installation Follow following instruction to manually install driver of CH340. 3.1 Download driver from the link provided above in this tutorial.

Pantech qualcomm 3g cdma usb modem driver download. Packing List (1) GSM Quad Band Modem, GPRS Class 10 (2) ANT Antenna with flying lead and connector (3) RS232 Cable Interface to PC (4) DIN Rail Mount Bracket (5)Power Supply (12Vdc to 110-240Vac) Warranty and after-sales service One year warranty and lifelong maintenance. In the warranty period, all because of the quality of products has caused the damage or failure of equipment, suppliers responsible for the free repair or replace a new equipment to you. Qualcomm 3g cdma modem driver quick detail: Compact 'Plug And Play' Quad band GSM modems can be directly connected to the serial port of a desktop or notebook computer through the RS232 interface.

3.2 Go to stat menu. 3.3 Right click on My Computer. 3.5 Click on Properties 3.6 Select Device Manager form left control panel 3.7 Expand USB options available 3.8 Right click on CH340 3.9 Select Update driver 3.10 Select browse option 3.11 Extract the downloaded folder, downloaded in step 3.1 3.12 locate step 3.10 browse to the extracted folder 3.13 follow the further instruction of your computer 3.14 your CH340 device will be installed 3.15 Note down the comport allotted to your device.

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