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G.Skill Trident Z 32GB (4 x 8GB) DDR4 3866 MHz, CL18 - memory, Silver/White - Multitronic
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Lexar ARES RGB DDR4 RAM 16GB Kit (8GB x 2) 3866 MHz, DRAM 288-Pin U-DIMM Desktop Memory, XMP 2.0 High Performance Computer Memory, CL18-20-20-39, PC4-30900, White (LD4EU008G-R3866GDWA) at Amazon.com
G.SKILL F4-3866C18D-16GTZR Trident Z RGB Series 16 GB (8 GB x 2) DDR4 3866 MHz PC4-30900 CL18 Dual Channel Memory Kit - Black with Full Length RGB LED Light bar at Amazon.com