Fujitsu launched the MHX2300BT series of mobile drives, with up to 300GB capacities. The MHX2300BT series will begin shipping in the first quarter of 2007. Engineered using perpendicular magnetic recording technology, the MHX2300BT is the industryâ€â„¢s first 300GB 2.5-inch perpendicular drive and will run at 4200RPM.