Matrox has announced the Matrox DualHead2Go DP Edition (D2G-DP-IF) and TripleHead2Go DP Edition (T2G-DP-IF) Graphics eXpansion Modules (GXMs) for DisplayPort-enabled computers and monitors:
"Matrox is pleased to offer its first external multi-display upgrades to DisplayPort adopters seeking maximum display performance across multiple displays," says Samuel Recine, Director of Business Development, Matrox Graphics. "For example, with the new TripleHead2Go DP Edition, the DisplayPort interface allows users to easily connect three displays to a single notebook to generate a purely digital connection from system to monitors, while enabling resolution support of up to an impressive 1680x1050 per external display."

The Matrox DualHead2Go DP Edition and TripleHead2Go DP Edition GXMs are external multi-display upgrades that work in conjunction with your system's existing GPU to connect two or three displays