This HP 805347-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 of memory to heighten your computer's performance
• 288-pin-pin DDR4 SDRAM interface synchronizes electrical and clock signals for an efficient data transfer rate
• Up to 2400 MHz speed with CL17 latency for smooth computer performance