RAM & Memory Upgrades
1GB (2 x 512MB) PC100 100MHz 144-PIN SDRAM SODIMM MEMORY RAM KIT COMPATIBLE WITH POWERBOOK G3 & TITANIUM POWERBOOK G4
SIZE/CAPACITY: 1GB KIT (2 x 512MB) VOLTAGE/POWER CONSUMPTION: 3.3v CAS LATENCY: CL2 SPEED: PC100 (100MHz) TYPE/INTERFACE: 144-PIN SDRAM SODIMM 144-PIN IBOOK G3 & POWERBOOK G4 SDRAM SODIMM
https://www.bizrate.co.uk/ram_memoryupgrades/1gb-2-x-512mb-pc100-oid38154236964.html