The SK Hynix 64GB DDR4 PC4-2133P RDIMM ECC Server RAM is a high-quality memory module designed for server use. With a total capacity of 64GB spread out over 4 modules, each with a capacity of 16GB, this RAM offers fast performance at a bus speed of PC4-17000 (DDR4-2133). The memory features include being registered and having ECC memory, ensuring reliable operation even in the event of errors. Made by SK hynix, a trusted brand in the industry, this RAM is a reliable choice for boosting the performance of your server system.