The product is a lot of 12 Samsung 8GB RAM sticks, with each stick containing 4GB of DDR3 SDRAM memory. These DIMM memory modules have a total capacity of 8GB and a bus speed of PC3-12800U. They are designed for desktop computers and feature ECC memory for improved error correction. Made in China, these memory sticks are a reliable choice for increasing the performance and capacity of your computer system.