AddOn 16GB DDR4 SDRAM Memory Module - For Computer - 16 GB (1 x 16GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - CL19 - 1.20 V - ECC - Registered - 288-pin - DIMM - Lifetime Warranty

This HP P00922-B21 compatible 16GB DDR4-2666MHz dual rank registered ECC 1.2V 288-pin CL17 factory original RDIMM is 100% guaranteed to be compatible with your system and to work right the first time. All of our server memory is built to strict JEDEC standards at one of the tier 1 facilities (Samsung, Micron, or Hynix). Our products are also guaranteed by federal law to not affect or void OEM warranties.