The product is a lot of 16GB DDR4 2666MHz SO-DIMM laptop RAM from the brand RAM. It includes 6 modules, each with a capacity of 16GB. The RAM is designed for DDR4 SDRAM memory with a bus speed of PC4-21300 (DDR4-2666) and is manufactured in China. Ideal for upgrading or replacing memory modules in laptops to improve performance and multitasking capabilities.