System memory modules can be "piggy-backed" onto each other (another feature unique to the 1400), allowing the use of additional RAM. The CPU is located on a removable daughter card, which can be replaced with one containing a faster processor, including a number of commercially available cards with PowerPC G3 processors from vendors such as Sonnet Technologies, NewerTech, and Vimage.
System memory modules can be stacked together (a unique feature of the 1400), allowing for additional RAM. The CPU is located on a removable daughter card that can be replaced with one containing a faster processor, including cards from vendors such as Sonnet Technologies, NewerTech, and Vimage, which offer PowerPC G3 processors.