The Samsung 12GB DDR4-3200 PC4-25600 RAM kit consists of two modules, one 8GB and one 4GB, offering a total capacity of 12GB. These DIMM modules have a non-ECC, unbuffered design and are designed to provide reliable performance for computers and servers. With a lifetime manufacturer warranty and a bus speed of PC4-25600 (DDR4-3200), this RAM kit is an ideal choice for upgrading your system's memory capacity and ensuring smooth operation for various computing tasks.