The SK Hynix 8GB Kit (2x4GB) 1Rx16 PC4-2666V-SCO-11 is a set of two DDR4 DRAM modules designed for use in laptops and other devices that require SO-DIMM form factor memory. Each module has a capacity of 4 GB, resulting in a total capacity of 8 GB. The brand, SK Hynix, is known for producing high-quality memory products.