This Lenovo 4X70G88311 compatible 32GB DDR4-2133MHz dual rank Registered ECC 1.2V 288-pin CL15 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.

• 32 GB of memory can produce approx. 10K MIPS and as a result, your system gets more room to run complex apps.
• 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 2133 MHz speed for smooth computer performance