Thin Mini-ITX motherboard with LGA 1700? It's here, from Asus - HWCooling.net
Taking a look at Thin Mini-ITX AM4 motherboards
congatec launches industrial Thin Mini-ITX motherboard with 7th Gen Intel® Core™ U processors for IoT connected devices - Low profile motherboard solution with high value! | Messukeskus
Asus Launches Thin Mini-ITX Motherboard for Alder Lake CPUs | Tom's Hardware