Pine64 launched SOPINE A64 system-on-module based on Allwinner A64 processor back in January, with such module normally being found in low volume products where companies do not want to spent too many resources developing complex multiple layers boards with CPU and RAM, and instead focus on developing a simpler baseboard and custom software for their product. Pine64 made something else with SOPINE A64 modules: a cluster board.
I don’t have the full details yet, but “PINE64 SoPine Cluster Board” comes with 7 SO-DIMM slot designed to take SOPINE64 modules with the board providing a micro USB OTG port, a USB host port, and Ethernet transceiver for each SoM, which are connected to a Gigabit Ethernet switch (initially Marvell 88E6185, but they appear to have now switched to a Realtek part), and accessible via a single Gigabit Ethernet port.
Power can be provided by a 5V/10A power supply connected to a power barrel, or via the ATX connector.I also understand the board is based on mini-ITX form factor (170×170 mm), so you’d be able easily find a case for it.
The board and software are still being developed, and it’s unclear when/if it will launch publicly.