DESC: The Comtrol RocketModem® IV is an integrated, multimodem, PCI-X compatible bus expansion card** designed to provide remote access on an industry standard application server or to build a custom data communications or fax server. Combining Comtrol’s proven RocketPort® multiport serial controller technology with industry-standard modem modules, the RocketModem IV provides either four or eight 56 Kbps V.92 data and fax modems in one easily installed, easily configured package.