The IBM 64 (2x32Mb) FRU 10L1226 RAM Memory is specifically designed for the ThinkPad 600 Series laptops. This memory module set includes two SO-DIMM modules with a total capacity of 64 MB. Each module has a capacity of 32 MB, and they are DDR1 SDRAM type with 144 pins. These memory modules are genuine IBM products, ensuring compatibility and reliability for your system. Upgrade your laptop's memory capacity with this unit quantity of 2 RAM modules.