This Cisco UCS-MR-2X162RY-E compatible 32GB (2x16GB) DDR3-1600MHz dual rank x4 Registered ECC 1.35V 240-pin CL11 factory original RDIMM kit 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). SpecificationsCAS Latency: CL11Chip By Value: x4Compatible OEM: CiscoCompatible With OEM Part Number(s): UCS-MR-2X162RY-EDIMM Type: RegisteredError Correction: ECCFactory Original Tier 1: YesForm Factor: RDIMMMemory Size: 32GBMemory Speed: DDR3-1600MHzMemory Voltage: 1.35VPins: 240Rank: DualSpeed: 1600MHzTechnology: DDR3- SKU: SYBA8528