Apple 4GB (2 x 2GB) PC2-6400 (800MHz) DDR2 ICD SODIMM Kit
Patriot Memory 4GB DDR2 PC2-6400 ICD SODIMM Kit, 4 GB, 2 x 2 GB, DDR2, 800 MHz
Patriot Memory 4GB DDR2 PC2-6400 ICD SODIMM Kit. Internal memory: 4 GB, Memory layout (modules x size): 2 x 2 GB, Internal memory type: DDR2, Memory clock speed: 800 MHz, CAS latency: 5