The Samsung M378B5273DH0-CH9 4GB (2 x 4GB) PC3-10600 (DDR3-1333) Memory LOT Of 2 RAM is a set of two DDR3 SDRAM modules designed for desktop computers. Each module has a capacity of 4GB, providing a total capacity of 8GB for the pair. These DIMM modules are designed with 240 pins and operate with a bus speed of PC3-10600 (DDR3-1333). Ideal for upgrading or replacing existing memory modules in a computer, this RAM set from Samsung is reliable and efficient for improving system performance.