This Standard Memory 4GB DDR2 533MHz PC2-4200 DIMM Dual Channel Kit (2x2GB) desktop computer memory upgrade contains 2 modules for a total of 4GB.
Our industry standard 4GB DDR2 533MHz PC2-4200 DIMM Dual Channel Kit (2x2GB) is built using high quality components from major 3rd party manufacturers. Chip brands vary with stock daily and may include Micron, Hynix, Infineon, Samsung and SpecTek. We honor a Lifetime Warranty for Replacement on this memory upgrade.