The Hynix 16GB DDR4-2400 PC4-19200 2Rx4 ECC RDIMM Memory 836220-B21 HMA42GR7BJR4N-UH is a high-quality memory module designed for server use. With a total capacity of 16GB and compatibility with server machines, this ECC registered memory offers reliable performance and error correction. The module has a dual rank x4 design, a frequency of 2400MHz, and a voltage of 1.2V. It is backed by a lifetime manufacturer warranty and is a dependable choice for enhancing the performance of server systems.