The Samsung 4GB Kit (2x2GB) DDR3-1333 PC3-10600U UDIMM RAM M378B5673FH0-CH9 is a memory module designed for high performance in computing systems. With a total capacity of 4GB spread across two modules, each with a capacity of 2GB, this DDR3 RAM is ideal for boosting the memory capacity of your computer. The 240 pins on the DIMM form factor ensure compatibility with a wide range of motherboards, while the ECC memory feature enhances error correction for improved reliability. Upgrade your system with this tested and reliable Samsung RAM module for enhanced performance and efficiency. Tested and working