The Samsung Lot of 5x4GB DDR3L PC3L-12800S 204-Pin SO-DIMM ECC memory modules offers a total capacity of 20GB, making it ideal for increasing the memory capacity of your computer. With a form factor of SO-DIMM and DDR3L type, these modules are designed for optimal performance and compatibility with various systems. The ECC memory feature provides error correction for enhanced reliability, while the lifetime manufacturer warranty ensures long-lasting support. The 4GB capacity per module allows for smooth multitasking and efficient computing, making this product a reliable choice for boosting your system's memory capacity.