The product is a Samsung 64 GB PC4-21300 (DDR4-2666) 4DRx4 ECC REG Load Reduced memory module designed for servers. It features a total capacity of 64 GB with a memory type of DDR4, and includes ECC memory, registered, and load reduced features. This memory module is compatible with the 64 GB PC4-21300 product line and has a bus speed of PC4-21300 (DDR4-2666). It has a form factor of RDIMM, a voltage of 1.2 V, and is suitable for enterprise networking and server applications.