This HP Z9H57AT compatible 16GB DDR4-2400MHz Dual Rank Unbuffered Non Ecc 1.2V 288-pin CL15 DIMM 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.

• 16 GB bar will run multiple applications together and enhance your computer's performance
• 288-pin-pin DDR4-2400/PC4-19200 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 for playing the latest games and using heavy software