The product is a lot of 12 Crucial 8GB DDR3 1600 SO-DIMM PC3 laptop RAM modules. Each module has a total capacity of 8GB and is designed for DDR3 SDRAM memory technology. With a bus speed of PC3-12800 (DDR3-1600), these RAM modules are suitable for laptops and provide reliable performance. Crucial is a trusted brand known for their lifetime manufacturer warranty, ensuring long-lasting durability and support for your computer memory needs.