I'm personally using https://www.friendlyelec.com/index.php?route=product%2Fproduct&product_id=294, sounds like what you're looking for. It's got four m.2 slots, up to 16gb ram, the rockchip soc should be sufficiently powerful for anything that's not crazy demanding.
I'm personally using https://www.friendlyelec.com/index.php?route=product%2Fproduct&product_id=294, sounds like what you're looking for. It's got four m.2 slots, up to 16gb ram, the rockchip soc should be sufficiently powerful for anything that's not crazy demanding.