This HP速 P19042-B21 Compatible 16GB DDR4-2933MHz Registered ECC Dual Rank x8 1.2V 288-pin CL17 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 stricts at one of the tier 1 facilities (Samsung速, Micron速, or Hynix速). Our products are also guaranteed by federal law to not affect or void OEM warranties.