The Samsung 64GB 4DRx4 PC4-2666V LRDIMM M386A8K40BM2-CTD7Y Server Memory RAM is a high-quality memory module designed for servers. With a total capacity of 64GB and a capacity per module of 64GB, this module provides reliable performance for demanding applications. It features ECC memory technology, DDR4 SDRAM type, and a voltage of 1.2V. The module has a form factor of LRDIMM, a frequency of 2666MHz, and a bus speed of PC4-21300 (DDR4-2666). Manufactured by Samsung in the United States, this memory module is backed by a lifetime warranty.