The Magnes board is equipped with an Intel® Arria® 10 GX FPGA, and by connecting two FPGA Mezzanine Card (hereafter, FMC) connectors and a COM Express® (hereafter, COMe) connector, it combines high expandability and flexibility. It is the ideal platform for advanced development by hardware engineers and software developers. The Magnes board has 2 banks of 2GByte DDR4-SDRAM and 2 high-speed mezzanine connectors, so you can combine up to 2 expansion cards that are commercially available or developed by the user. In addition, since it is equipped with a COMe connector and connects to the FPGA via PCIe, it is easy to connect to a general-purpose CPU, making it possible to develop various applications that combine FPGA and CPU.