MSI intros Big Bang Marshal board with eight PCIe x16 slots | TechSpot
Amazon.com: ASUS AMD AM4 Pro WS X570-Ace ATX Workstation Motherboard with 3 PCIe 4.0 X16, Dual Realtek and Intel Gigabit LAN, DDR4 ECC Memory Support, Dual M.2, U.2, and Control Center :
Right 90 Degrees M.2 NVMe to PCI Express x16 Extender Adapter Jumper For GPU Graphics Video Cards STX Mainboard PCIe3.0 x4 gen3 - AliExpress
ASUS ROG Strix B450-F Gaming II AMD AM4 (Ryzen 5000, 3rd Gen Ryzen ATX Gaming Motherboard (8+4 Power Stages, HDMI 2.0b/DP,2 x PCIe 3.0 x16, USB 3.2 Gen 2 Type-C, BIOS Flashback,
ASUS Launches WS C246 PRO: 4 PCIe 3.0 x16, Two M.2, Optional SAS RAID
Others|Motherboards|ASUS Global
GIGABYTE Server Launches the MW70-3S0, Targeting 3x PCIe 3.0 x16 and LSI 3008