The Kingston ACR256X64D3S1333C9 2x2GB PC3-10600S-9-10-F0 DDR3-1333MHz Laptop Memory is a high-quality RAM module designed for laptops that require DDR3 SDRAM memory. With a total capacity of 4GB spread across two modules, each with a capacity of 2GB, this memory upgrade is perfect for increasing the performance and speed of your laptop. The SO-DIMM form factor ensures compatibility with a wide range of laptop models, while the 204 pins make it easy to install. Upgrade your laptop with this reliable and efficient memory module from Kingston. These RAM chips were pulled from a working laptop that was upgraded.