USB 4-port Serial Adapter from Keyspan

"The "Keyspan USB 4-Port Serial Adapter" allows 4 serial devices to be connected to a single USB port with each port supporting data rates up to 960 Kbps. In addition to supporting MacOS 8.6 or later, this adapter may be used with Windows 98 and Windows ME, as well as with Linux 2.4; support for Mac OS X and Windows 2000 will be available later this quarter. With an MSRP of $149 the Keyspan USB 4-Port Serial Adapter will sell for about half the cost of a slower four-port offering already on the market. The Keyspan USB 4-Port Serial Adapter is ideal for point of sale, medical, lab, manufacturing and scientific applications where multiple serial instruments must be connected to a Mac USB port."