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One of the most difficult support issues we face is helping our customers with serial connections to connect timers and scoreboards to their computers.
The usual approach to this is with adapters either via USB ports or PC Card slots.
But, given there are so many manufacturers we often have limited ability to help in diagnosing and helping with problems. They don't all work as well as you would hope!

In an effort to solve this we recommend the following USB to Serial adapters:

USB to Serial Adapter by ATEN
	The ATEN UC232A would be our first recommendation. It works well, is inexpensive, and as far as we know it's the only one that works with all versions of Windows. The manufacturer's page is here. Available from a number of suppliers including: Amazon Newegg KVMSwitchesOnline