Upgrade your laptop's performance with this 4GB (2x 2GB) PC2-5300s 667MHZ DDR2 SODIMM memory kit. The SO-DIMM form factor is specifically designed for laptops and offers easy installation. This memory kit is perfect for those who want to increase their laptop's multitasking capabilities and run more demanding applications. With a brand you can trust, this DDR2 SODIMM memory kit is a reliable and affordable solution for enhancing your laptop's performance.