The CEC CSC3500 high-speed USB On-The-Go (OTG) embedded system integrated controller is designed for data system with memory card read/write control. It is built-in dual 480Mbps high-speed OTG, SD/MMC/MS series card interface, IDE for hard disk and CF card, Uart/I2C/SPI serial interface, and up to 14 configurable I/O ports. It has special mechanism for products with fast data transfers requirement. With dual ports capability, it can easily connect two USB devices or memory card and interoperability with each others.