Ex-Pro Premium Apple Mini-DVI to DVI Adapter is designed for use with the iMac (Intel Core Duo), Macbook and 12-inch PowerBook G4. Connect the adapter to the Mini-DVI port of the PowerBook G4 and the DVI end of the adapter to an external DVI monitor or projector Supports Video-Mirroring & Extended desktop modes For use with iMac (Intel Core Duo), Macbook and 12-inch PowerBook G4 10 year Ex-Pro warranty, ROHS Compliant.