The Crucial Ballistix Sport LT 16 GB memory module kit includes two 8GB DDR4 modules with a bus speed of DDR4-2666). These DIMM modules are designed for gaming and high-performance computing, offering unbuffered memory for improved stability and responsiveness. With a total capacity of 16GB, this memory kit is suitable for upgrading existing systems or for building new ones with high memory requirements. The Crucial brand is known for quality and reliable memory solutions, making this product a good choice for those looking to enhance their computer's performance.