The Kingston 4GB DDR3 PC3-8500 1066MHz SODIMM Laptop RAM Memory is a high-quality memory module designed for laptops. With a total capacity of 4GB spread across two 2GB modules, it offers ample memory for multitasking and running demanding applications. The SO-DIMM form factor and 204 pins make it compatible with a wide range of laptops, while the DDR3 SDRAM technology ensures fast and efficient data processing. Upgrade your laptop's performance with this reliable and efficient memory module from Kingston.used, works fine, no issues tested