Asus WS C246 PRO Intel® LGA1151 ATX motherboard with four PCIe 3.0 x16 slots, dual M.2 and USB 3.1 Gen2 connectors - Mentor Distribution
The KingSpec Solid State Drive NX Series 1 TB M.2 2242 PCIe 3.0 x 4 NVMe 1.3 SSD High-Performance for PC Laptop Desktop Ultrabook and Portable Device Upgrade Motherboard - Newegg.com
Amazon.com: chenyang CY PCI-E 3.0 x4 Lane to U.2 U2 Kit SFF-8639 Host Adapter for Intel Motherboard & 750 NVMe PCIe SSD : Electronics
Amazon.com: Gigabyte A520I AC (AMD Ryzen AM4/Mini-ITX/Direct 6 Phases Digital PWM with 55A DrMOS/Gaming GbE LAN/Intel WiFi+Bluetooth/NVMe PCIe 3.0 x4 M.2/3 Display Interfaces/Q-Flash Plus/Motherboard) : Electronics
Dual M.2 PCIe NVMe Adapter Without PCIe Splitter Function (PCIe Bifurcation Motherboard is Required), Support M.2 PCIe 4.0/3.0 SSD Soft RAID Setup in Windows/Linux
Tishric B75-s Motherboard With Pci-e Nvme X4 3.0 M.2 Nvme Interface 24pin+atx 4pin Psu Support Xeon E3 V1/v2 Lga1155 Series Cpu - Motherboards - AliExpress
Can anyone please help to understand? MB specs - CPUs, Motherboards, and Memory - Linus Tech Tips