HP 1GB DDR2 PC2-6400 Module Marketing description is not available. HP 1GB DDR2 SDRAM memory module 800MHz SO DIMM 200-pin Specifications Product Description HP 1GB DDR2 PC2-6400 Module Storage Capacity 1GB Upgrade Type System specific Technology DDR2 SDRAM Form Factor SO DIMM 200-pin Memory Speed 800 MHz ( PC2-6400 )