New dual Xeon LGA 2011 mining motherboard straight outa China to specifically deal with the PCIe 3.0 8x requirement of the 3060 and RX 4GB series card for mining. : r/gpumining
The ASUS H370 Mining Master connects 20 GPUs to one motherboard with PCIe over USB - Edge Up
TEHAUX BTC- D37 Mining Motherboard, Mining Machine Motherboard CPU 8 Video Card Slots DDR3 Memory Integrated, Interface Low Power Consume for Mining M :B09QMBXYK7:Import Vie.Terrasse - 通販 - Yahoo!ショッピング
B75 12gpu Btc Mining Motherboard+random Cpu Support 2xddr3 Ram Msata 12xusb3.0 B75 Usb Miner Mother | Fruugo NO
Mining Motherboard SATA 3.0 8 GPU PCI-E 16X Motherboard with USB 2.0 DDR3 Memory Slots Computer Parts - Walmart.com
Asus made a crypto-mining motherboard that supports up to 20 GPUs - The Verge