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  1. this is base on BPI-R2, with 4 4G module desin. We can work with our customers to provide overall solutions 4G Multi-network fusion terminal 4G Multiple 1.jpg750x361 31.4 KB 4G Multi-network fusion server 4G Multiple 2.jpg750x225 21 KB overall solutions 4G Multiple 1 system.jpg1248x477 96.3 KB PCBA inside: 4G Multi-network fusion 1.jpg750x503 63.4 KB more aout BPI 4.0 Service : http://wiki.banana-pi.org/Successful_case
  2. I have a question, there are so many development boards in this world, banana pi, raspberry pi and so on, could you pls tell me more about these boards? What's your opinion?