The product is a set of 6 RAM modules with a total capacity of 16GB, split between DDR3 and DDR4 SDRAM with 4GB and 1GB capacities per module, respectively. Manufactured by Micron, the memory modules have a form factor of FB-DIMM and feature ECC memory for enhanced error correction. Each module has 204 pins and comes with a lifetime manufacturer warranty. Ideal for laptops, this RAM set offers a reliable and high-performance memory solution for your computing needs.