The Kingston PC2-6400S 2GB Kit (2x1GB) DDR2 200-Pin SO-DIMM Non-ECC memory modules are designed for high performance in computers and laptops. With a total capacity of 2GB spread across 2 modules, each with a capacity of 1GB, these DDR2 SDRAM modules offer reliable memory for everyday use. The non-ECC feature ensures error correction and improved stability, while the compact SO-DIMM form factor makes them easy to install. Built by trusted brand Kingston, these memory modules are a great choice for upgrading or replacing existing memory modules in your system.