Improve your PCs performance with this Micron DDR3 240-pin DIMM memory! It's ideal for those who are building a new system or upgrading. This PC3-12800 rated memory module features 4 GB of DDR3 RAM and an ultra-fast bus speed of 1600 MHz! Make your computer run faster and work more efficiently by adding this Micron 4 GB DDR3 PC3-12800 RAM! Order today!