Sony VAIO PCG-X Series Memory Upgrade Configurator - choose your Model:

PCG-X18
PCG-X29
PCG-X9
PCG-XE17
PCG-XE7
PCG-XG18
PCG-XG19
PCG-XG28
PCG-XG28K
PCG-XG29
PCG-XG29K
PCG-XG38
PCG-XG39
PCG-XG500/XG500K
PCG-XG700/XG700K
PCG-XG9