Asus made a crypto-mining motherboard that supports up to 20 GPUs - The Verge
MLLIQUEA 847 Mining Motherboard, 8 GPU Slots Mining Machine System, Cryptocurrency Miner Barebone Motherboard for Mining ETHW/ETC/RVN/Ergo/Beam with SSD, RAM
Amazon.com: BTC-37 Mining Motherboard, Miner Motherboard CPU Set 8 Video Card Slot DDR3 Memory Integrated, VGA Interface Low Power Consume for Mining Machine : Electronics
9 Best Motherboard for Mining In 2023 - Tech4Gamers