Silicon Power laptop RAM [ SP004GBSTU160N02 ] Features Capacity: 4GB Generation: DDR3 speed: 1600 MHz CL11 Engineered for best performance in mainstream DDR3 notebook . More RAMs Fast system performance Designed to help your system run faster and smoother, the DDR3 offers the fastest data transfer rate of 1600. In addition, DDR3 technology provides more bandwidth and higher power efficiency than DDR2, while operating up to two times faster. A simple upgrade to your system’s RAM will allow you to load applications faster, increase responsiveness, and make it easy to work with programs that require large amounts of data.