4GB STICK For Sony VAIO VPCEH1EGX/B VPCEH1FGX/B VPCEH1J1E VPCEH1J8E VPCEH1L0E VPCEH1L8E VPCEH1L9E VPCEH1M1E VPCEH1M8E VPCEH1M9E. SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory. Genuine A-Tech Brand. 4GB STICK SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Sony VAIO. (See Compatibility List Below)