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![SPI/I2Cプロトコルエミュレーター（ハイグレードモデル） REX-USB61mk2[RATOC]](https://www.ratocsystems.com/products/subpage/convert/image/usb61mk2_rei01.gif "SPI/I2Cプロトコルエミュレーター（ハイグレードモデル） REX-USB61mk2[RATOC]")