Upgrade your laptop's memory with this SK HYNIX 4GB (2x2GB) 1Rx8 PC3-12800S DDR3 SODIMM memory kit. Boost your computer's performance with a total capacity of 4 MB and a bus speed of PC3-12800 (DDR3-1600). This kit comes with two modules, each with a capacity of 2 GB, and is compatible with laptops that have 204 pins. The memory is in excellent working condition and has been tested for quality assurance.This SK HYNIX memory kit is perfect for those who want to increase their laptop's speed and overall performance. It is easy to install and will provide a quick and noticeable improvement in your computer's performance. Whether you use your laptop for work or entertainment, this memory kit will enhance your experience.