MCE Technologies has added a 100GB hard drive to its MobileStor line of PowerBook hard drive upgrades. The MCE MobileStor 100GB hard drive upgrade is compatible with all Apple PowerBook G4 models, and can also be installed in iBook G4, PowerBook G3, and iBook G3 models. The drive has a 8MB cache buffer and a suggested retail price of US$279. It is available for immediate shipment.