This product is a set of two Hynix DDR2 SDRAM memory modules, each with a capacity of 1GB, totaling 2GB. The modules are designed for desktop PCs with a DIMM form factor and 240 pins. They operate at a bus speed of PC2-5300 (DDR2-667) and feature a model number of HYMP512U64CP8-Y5. This memory kit is suitable for upgrading or replacing RAM in compatible desktop computers to enhance overall performance and multitasking capabilities.