'FriendlyARM, the maker of compact NanoPi developer boards, has released the NanoPi Neo Plus2 for $25. From a report:

This board is an update to the recently released NanoPi Neo 2, a $15 cookie-sized developer board measuring 40mm x 40mm (1.6in) with a 64-bit Allwinner H5 processor, 512MB RAM, and one USB port. The NanoPi Neo Plus2 is slightly larger at 52mm x 40mm (2in x 1.6in) and has two USB ports. It has the same H5 quad-core A53 ARM Cortex processor, but comes with 1GB RAM and 8GB eMMC storage. The NeoPlus2's storage in addition to Gigabit Ethernet puts it ahead of the Raspberry Pi 3 on paper, and at $25 undercuts the better-known board by $10.'

-- source: https://hardware.slashdot.org/story/17/07/05/0211212

Cheers, Peter