4GB DDR3 1333MHz PC3-10600 Ram Memory Stick 1.5V 204-Pin Non-ECC Unbuffered SO-DIMM Designed for ASUS LAPTOP X55C-SI30202M All A-Tech modules undergo quality assurance testing to ensure dependable and reliable performance A-Tech Brand Lifetime Warranty + Free United States Based Technical Support 説明: The A-Tech 4GB Memory stick was specifically e A-Tech 4GB RAM for ASUS Laptop X55C-SI30202M | DDR3 1333MHz SODIMM PC3-10600 204-Pin Non-ECC Memory Upgrade Module