The product is a 16GB Samsung DDR4 2666MHz PC4-2666V SODIMM Laptop RAM module, consisting of two 8GB modules. It has a lifetime manufacturer warranty and features ECC memory for error correction. The memory module has a form factor of SO-DIMM and a bus speed of PC4-21300 (DDR4-2666). With 260 pins and a height of 30mm, this RAM module is a reliable and high-performance option for upgrading your laptop's memory capacity.