Expensive Asus Zephyrus laptops tend to ship with single-channel memory only - NotebookCheck.net News
Jingsha X99 Dual CPU Motherboard LGA 2011V3 V4 Support 4-Channel 2133/ 2400mhz RAM 10*SATA 3.0 NVME_M.2 SSD
Quad-channel RAM vs. dual-channel RAM: The shocking truth about their performance | PCWorld
2 vs 4 RAM Modules - Are There Any Differences?
G.Skill RipJaws V Series 128GB (4 x 32GB) 288-Pin SDRAM PC4-21300 DDR4 2666 CL18-18-18-38 1.20V Quad Channel Desktop Memory Model F4-2666C18Q-128GVK at Amazon.com