This HP 862974-B21 compatible 8GB DDR4-2400MHz single 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.

• 8 GB memory allows you to have more programs open at a time
• DDR4 SDRAM operates at an effective bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation
• Up to 2400 MHz speed with Registered signal for smooth computer performance