Albuquerque, N.M. The Maxim 921-DS PCI mezzanine card (PMC) provides full-duplex channelized DS3 connectivity to infrastructure designs. This board supports up to 28 T1 lines as well as up to 672 DS0s. It offers a 44.736-Mbit/s connectivity interface as well as a 33/66 MHz PCI interface. The board also comes equipped with Linux, VxWorks, and Windows XP drivers.
Data Sheet: http://www.sbs.com/products/738
SBS Technologies, www.sbs.com