Well, I would recommend purchasing USB serial adapter replacements from Future Shop because they offer a variety of products for an incredibly reasonable price.
A good place to search for a USB serial adapter would be on the website tigerdirect.com. The website provides multiple matches for your search to offer competitive prices.
Connecting an adapter USB to a serial port is very simple. All you need to do is purchase a USB Serial Adapter. These range in price from $6.00 used to upwards of $30.00 new. http://www.Amazon.com provides several USB serial adapters to purchase online.
The highest rated cable is the Dynex 16" USB PDA/Serial Adapter Cable
They do make universal USB serial adapters. They are very affordable.
usb port driver, serial adapter,
You can go back to the store where you purchased the computer and ask for a good quality USB Ethernet which is cheap or search in amazon.com for the cheap & top qualified USB Ethernet adapter.
If you need to use an older serial device, than a USB to serial adapter is required. This adapter has all of the required drivers programmed into it to ensure that the use of your serial device is seamless.
Get a USB to Serial adapter with standard thumbscrew connectors so you can make sure you have a secure connection that won't accidentally come apart.
I want to buy a USB serial adapter for my small business which could likely be the answer to my problems but I need to find out if there are different versions.
Get a PS2 to USB adapter. They are really cheap.
That means that you're using a USB to Serial adapter like this: http://sewelldirect.com/usbtoserial.asp Prolific is one of the companies that makes USB to Serial chipsets, and when you are using one of their adapters it will show up on your computer like that. Many newer computer do not have serial ports on them so you need a USB to Serial adapter to be able to use serial devices with your computer. If you have a laptop and you're using a docking station then it might have a USB to Serial adapter inside of it which is using the Prolific chipset.
A serial USB adapter can be found at any local retail store that sells electronic equipment. Radio Shack or Staples would be a couple of solid recommendations.