Why do i see many drivers? Below is a list of drivers that may be suitable for your device. With the different devices, they can have the same driver, it's because they all use the same chip manufacturer. How to select driver? If you are looking for an update, pickup the latest one. If your driver isn't working, use the driver having the same OEM with the your laptop/desktop brand name.

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. Matisyahu full discography torrent. 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.
Download the latest version of USB SERIAL CH340 drivers according to your computer's operating system.