64GB DDR4-2666 ECC LRDIMM CISCO - UCS-ML-X64G4RS-HAxiom Memory Axiom 64GB DDR4 2666 ECC LRDIMM for Cisco UCS ML X64G4RS H 64 GB DDR4 2666 PC4 21300 DDR4 SDRAM 2666 MHz 1. 20 V ECC 288 pin LRDIMM Lifetime Warranty VPN: UCS ML X64G4RS H AX SKU: RSC226359 UPC: 841280177019 64 GB of memory can produce approx. 10K MIPS and as a result, your system gets more room to run complex apps. 2666 MHz memory speed for great multitasking capability DDR4 SDRAM interface multiplexes 2 bit data from memory cell and I O