The SK Hynix HMT351S6CFR8C-PB 4GB PC3-12800S DDR3 1600 SODIMM Laptop Ram is a high-quality memory module designed for laptops. With a total capacity of 4GB and a bus speed of PC3-12800 (DDR3-1600), this RAM module is perfect for upgrading or replacing existing memory modules in laptops. The SO-DIMM form factor and DDR3 SDRAM type ensure compatibility with a wide range of laptop models. The Hynix brand is known for its reliability and performance, making this RAM module a dependable choice for improving your laptop's performance and speed.