Despite Pico-ITX being half the size of a Nano-ITX board, ARM and Intel chipsets are readily available on this small format.
Ultra-reliable Embedded Single Board Computers (SBC) from Impulse with long-lifetime supply and revision control. Available in 2.5" Pico-ITX, 3.5" Biscuit, PC/104 and EPIC form factors, suitable for a wide range of embedded OEM applications.