The Apple PowerBook 1400cs 166 uses 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
Base Memory 16 MB
Upgrade Slots 1*
Maximum Memory 64 MB
Maximum Module Size
CPU & Chipset 166 MHz PowerPC 603e 32-Bit
Bus Architecture ~
Notes Released On 12/17/1997. Discontinued On 05/06/1998
Manufacturer Part Numbers
  • M6274LL/A
  • M3571

We currently do not offer any upgrades or upgrades are currently unavailable for purchase online. Please contact us to order upgrades for this device.