Fujitsu today said it would not be left out of the mobile storage race and updated its MH-series drives with the MHZ2 BT, its first 500GB notebook-class disk. The 2.5-inch drive is comparatively slow at 4,200RPM but draws just 1.8 watts of power in peak use, ensuring that it can run for long amounts of time in notebooks and other energy-sensitive devices. This performance is the best in class, Fujitsu claims. Idling and sleep power use are also said to be lower than any other disk in the category along with noise, which is an exceptionally low 2.1 decibels.

The Fujitsu disk attaches through Serial ATA and Serial ATA II connectors for any computer, DVR, or external drive enclosures that support either of the two standards. Both the 500GB disk and a lower-capacity 400GB version will be available in May with prices to be set closer to the actual release date.