The product is a set of two 8GB Hynix DDR3 SDRAM modules with a bus speed of PC3-12800 (DDR3-1600). Each module has a capacity of 8GB, providing a total capacity of 16GB for the pair. These memory modules are suitable for upgrading or replacing existing RAM in computers that require DDR3 memory technology. With a reputable brand like Hynix, users can expect reliable and high-quality performance from this RAM upgrade.