The product is a set of four 8GB DDR4-2666 PC4-2666V 288-Pin DIMM non-ECC RAM modules by Micron. Each module has a total capacity of 8GB, with a form factor of DIMM and a bus speed of PC4-2666V-SA2-11. These memory modules are designed for high performance and reliability, making them ideal for enhancing the memory capacity of a computer system. The modules are manufactured in the United States and have a length of 133mm, height of 31mm, and width of 3mm.