AddOn 8GB DDR5 SDRAM Memory Module - 8 GB (1 x 8GB) - DDR5-4800/PC5-38400 DDR5 SDRAM - 4800 MHz Single-rank Memory - CL40 - 1.10 V - Non-ECC - Unbuffered - 288-pin - DIMM - Lifetime Warranty

This HP?' 4M9X9AA Compatible Factory Original 8GB DDR5-4800MHz Unbuffered Single Rank x8 1.1V 288-pin CL40 UDIMM is 100% guaranteed to be compatible with your system and to work right the first time. Adding additional memory is the best way to increase the performance of your system. All our memory is built to strict JEDEC standards to meet or exceed the Tier 1 OEM's factory requirements. Our products are also guaranteed by federal law to not affect or void OEM warranties.