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Crucial CT16G4RFD8266 16Gb Ddr4-2666 Rdimm, 16 Gb (1 X 16 Gb), Ddr4 Sdram, 2666 Mhz Ddr4-2666/Pc4-21300, 1.20 V, Ecc, Registered, 288-Pin, Dimm,

Micron MTA8ATF1G64HZ-2G6E1 8GB DDR4 2666MHz Memory Module - Memory Modules (8GB, 1x8GB, DDR4, 2666MHz, 260-pin SO-DIMM),

Supermicro (Micron) 32GB 288-Pin DDR4 2666 (PC4-21300) Server Memory (MEM-VR432MD-EU26),

Micron MTA8ATF1G64HZ-2G6E1 8GB DDR4 2666MHz Memory Module - Memory Modules (8GB, 1x8GB, DDR4, 2666MHz, 260-pin SO-DIMM) at Amazon.com,