The product is a 4GB (2X2GB) 1Rx16 PC3L-12800S laptop memory RAM by Micron. It consists of two DDR3 SDRAM modules, each with a capacity of 2GB. The memory RAM model is MT8JTF25664HZ-1G6M1, with a bus speed of PC3L-12800 (DDR3-1600). Made in China, this product is designed to enhance the memory capacity of laptops for improved performance. It is important to note that this product may not be compatible with all laptops and should be checked for compatibility before installation.