http://www.macnn.com/articles/01/03/05/four.port/
Four port Serial-USB Adapter from Keyspan
updated 06:20 am EST, Mon March 5, 2001
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Keyspan is now shipping its new USB 4-port Serial Adapter, which provides four male DB9 ports for connecting RS232 serial devices at data rates up to 960 Kbps via a standard USB port. The company promises Mac OS X support for the $150 devices in the third quarter.
