The product is a set of Hynix DDR3 laptop memory modules, with a total capacity of 4GB spread across two 2GB modules. The memory modules have a form factor of SO-DIMM and a bus speed of PC3-8500S. The memory modules are ideal for upgrading or replacing existing memory modules in laptops to improve performance and speed. With the reliable Hynix brand and DDR3 SDRAM technology, this RAM is designed to enhance the overall functionality of a laptop system.