This DDR2 800MHz Sodimm 4GB Kit 2GBX2 PC2 6400 6400S RAM is a memory module designed for laptops, specifically compatible with devices that require 200 pins of memory technology. With a data transfer rate of 800.0, this RAM has a memory storage capacity of 4GB divided into 2GBx2 modules. The form factor is So-Dimm, with a voltage requirement of 1.8V, making it suitable for various computer systems. Made by Apacer, this DDR2 SODIMM kit offers reliable performance for enhancing the speed and efficiency of your device's memory storage.