The SK Hynix 8GB (2x4GB) PC4-2133P DDR4 SODIMM Laptop RAM Matching Pair is a reliable memory module for laptops. Made by the reputable brand SK hynix, this memory module is designed with a total capacity of 8GB spread across two 4GB modules. It features DDR4 SDRAM technology, a form factor of SO-DIMM, and a bus speed of PC4-17000 (DDR4-2133).