This Hynix 1GB DDR2 SDRAM DIMM module operates at a bus speed of PC2-6400 (DDR2-800) and is ideal for upgrading or replacing memory in a computer system. With a total capacity of 1GB, this module consists of one 1GB module with a single rank and eight memory chips. The Hynix HYMP112U64CP8-S6-AB-C is designed to provide reliable performance at a speed of 800MHz, making it suitable for various computing tasks.