Cheap And Discounts NanoPi R2S LTS (1G DDR4 RAM) Rockchip RK3328, Quad Cortex-A53,Dual 1000M Ethernet ports,USB3.0,OpenWRT,U-boot,Ubuntu-Core Wholesale. Buy Directly From Merchant YoungSunTek Development Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.