Crucial CT16G4RFD4213 16GB Single DDR4 2133 MT/s (PC4-2133) CL15 DR x4 ECC Registered DIMM 288-Pin Server Memory Capacity: 16 GB Designed for leading platforms, compatible with OEM systems.Memory Type: DDR4 SDRAM - DIMM 288-pin Upgrade Type: Generic DDR4 288-pin DIMM. Next generation DDR4 memory 2x the Speed, 2x the Capacity. Up to 40% More Energy Efficient Enhance cloud computing, Big Data, HPC, and more Micron Quality  A Higher Level of Reliability. 2133 MT/S Speed Limited Lifetime Warranty.