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David Carlson

Windows 7 and USB / Serial Drivers

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Some in-house testing revealed how crucial it is to install the USB / Serial converter drivers BEFORE plugging it into your computer running Windows 7. The problem that can occur involves Windows 7 installing the wrong driver. It may work intermittently, but not effectively.

The driver is available on the accompanying CD ROM, or it can be downloaded via the manufacturer's website:

www.cablestogo.com > Click RESOURCES > Drivers and Manuals > 26886 USB to Serial DB9 Adapter Driver > 26886-Win7(v1210).zip

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 As mentioned in another thread, it highly depends on which chipset the usb to serial adapter is designed with.

There are several companies that makes usb serial adapters, the most commonly used chipsets are:

Silicon Labs

Prolific is the cheapest but also the worst, the drivers/chipset are simply incompatible with many devices and operating systems, including 64-bit systems. The best chipset/drivers are the FTDI. These are very solid and compatible with most devices and almost all operating systems both 32 and 64-bit. These usb serial adapters are a bit more expensive but well worth the money.

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