The Mushkin Enhanced copperhead 8GB PC3-12800 DDR3 RAM kit includes two 4GB SO-DIMM modules, providing a total capacity of 8GB. With a bus speed of PC3-17000 (DDR3-2133), this memory is designed for high performance in computers and laptops. The modules are of non-ECC type, making them suitable for a variety of applications. Made in the United Kingdom, this DDR3 RAM from Mushkin Enhanced is a reliable choice for enhancing the speed and efficiency of your system.