Matrox Graphics announced the immediate availability of Mac-compatible versions of the DualHead2Go and TripleHead2Go multi-display adapters on Thursday. The adapters connect to the video-out port on Desktop and portable Macs, and let you use either two or three external displays as a single monitor without requiring any additional hardware or software.
The Matrox DualHead2Go.
The DualHead2Go supports resolutions up to 2560x1024, and the TripleHead2Go supports resolutions up to 3840x1024. They are priced at US$169 and $299, respectively.[This article has been updated with new resolution information.]