Upgrade the memory of your laptop with this Samsung 4GB DDR3 SDRAM So-Dimm RAM module. With a total capacity of 4GB and a capacity per module of 4GB, this unit is perfect for increasing your laptop's speed and performance. The model number M471B5173QH0-YK0 with 204 pins and bus speed of PC3-12800 (DDR3-1600) ensures compatibility with most laptops. This unit is perfect for those looking to enhance their laptop's performance and multitasking capabilities. The memory features of this RAM module make it ideal for laptop use. Add this unit to your laptop, and enjoy the increased speed and performance.