The Apple PowerBook G3 400MHz (Firewire/Pismo) uses SDRAM SODIMM memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

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Memory Type SDRAM SODIMM
Base Memory
Upgrade Slots 2
Maximum Memory 1GB
Maximum Module Size 512MB
CPU & Chipset ~
Bus Architecture ~
Part Number 12.5C3
133MHz 144pin CL3
In Stock
$21.99
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Part Number 12.5C3H
133MHz 144pin CL3
In Stock
$34.99
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Part Number 12.5C3
133MHz 144pin CL3
In Stock
$21.99
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Part Number 12.5C3H
133MHz 144pin CL3
In Stock
$34.99
View Product

Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
CT231172 512MB SDRAM PC133 133MHz SODIMM Crucial 12.5C3