G5Jam

The G5Jam is a replacement baffle and associated accessories for Apple Computer's Powermac G5 computer, allowing a maximum of four internal hard drives to be installed instead of the usual two, expanding the possible internal storage of the G5 to up to 5 terabytes. It is manufactured by Wiebetech.

However, installing the G5Jam removes the ability to put full-length PCI cards in the first three PCI slots. The fourth PCI/AGP slot is still left open. It gives the possibility of a 2 terabyte volume with speeds up to 200 mb per second.