Upgrade your computer's memory with this lot of 5 Samsung 4GB DDR3 SDRAM SO-DIMM modules, each with a capacity of 4GB and a bus speed of PC3L-12800S. The model number is M471B5173EB0-YK0 and they have 204 pins. These modules are suitable for use in laptops, mini PCs, and other small form factor devices. With a total of 20GB of memory, you can enjoy faster multitasking, smoother video playback, and improved overall system performance. These modules are compatible with a wide range of computer systems and are easy to install. Get the most out of your computer by upgrading its memory today with these high-quality Samsung modules.