The product is a lot of 2 SK Hynix 8GB PC3L-12800S memory modules, with a total capacity of 16GB. Each module has a capacity of 8GB, and they run at a bus speed of PC3-12800 (DDR3-1600). These DDR3 SDRAM modules are designed for improved performance and efficiency in computer systems that require high-quality memory technology. SK Hynix is a reputable brand known for producing reliable and high-performing memory modules, making this product a reliable choice for enhancing the performance of your computer system.