Internal hard drives for the Pismo, Lombard, and Wallstreet II can be used interchangeably. The expansion bay drives (DVD, CD, floppy, battery) are interchangeable on the Pismo and Lombard, but not on the Wallstreet. A DVD drive was optional on the 333 MHz model and standard on the 400 MHz version. The 400 MHz model included a hardware MPEG-2 decoder for DVD playback, while the 333 MHz model was left without (except for the PC card one used by Wallstreet). Further DVD playback optimizations enabled both models to play back DVDs without use of hardware assistance. This model introduced USB ports to the PowerBook line while retaining SCSI support and eliminating ADB entirely (although the keyboard and touchpad still used an ADB interface internally). Graphics were provided by an ATi Rage LT Pro chipset on the PCI bus, to drive its 14.1-inch LCD at a maximum resolution of 1024×768.
The fourth generation of PowerBook G3 (Pismo), was introduced in February 2000. It was code named "Pismo" after the City of Pismo Beach, California. For this generation Apple dropped "G3" from the name.
Versions of Mac OS from 9.0.2 through 10.4.11 are officially supported. For some time, G3 (750FX) CPU upgrades at speeds of up to 900 MHz and G4 (7410LE) upgrades up to 550 MHz were available. These upgrades are now out of production and must be purchased secondhand.
The Pismo PowerBook was the last of the G3 line. It was succeeded by the PowerBook G4 Titanium models.