Dell 64GB Certified Memory Module - 4RX4 LRDIMM 2666MHz LV - 64 GB - DDR4-2666/PC4-21300 DDR4 SDRAM - CL19 - 1.20 V - ECC - 288-pin - LRDIMMGeneral InformationManufacturer: Dell TechnologiesManufacturer Part Number: SNP4JMGMC 64GManufacturer Website Address: http: www. delltechnologies. Brand Name: DellProduct Name: 64GB Certified Memory Module 4RX4 LRDIMM 2666MHz LVProduct Type: RAM ModuleTechnical InformationMemory Size: 64 GBMemory Technology: DDR4 SDRAM Memory Voltage: 1. 20 VMemory Speed: 2666 MHzMemory Standard: DDR4 2666 PC4 21300Error Checking: ECCCAS Latency: CL19Device