The Nanya 4GB 2Rx8 PC3-12800U-11-10-B0.1600 Non-ECC Unbuffered RAM NT4GC64B8HG0NF-DI is a high-quality RAM module designed for computers and laptops. With a total capacity of 4GB spread across 4 modules, each with 4GB of memory, this DDR3 SDRAM RAM provides fast and reliable performance. The UDIMM form factor ensures compatibility with various systems, making it a versatile choice for upgrading your computer's memory capacity. The Nanya brand is known for producing reliable RAM modules, making this product a solid choice for improving your system's speed and efficiency.