Qtenboard MG520.U Mainboard for High-end Conference Interactive flat panel Devices

  In the era of booming smart offices and intelligent conferences, high-performance, stable and expandable mainboards are essential for Interactive flat panel devices. Qtenboard MG520.U is a professional mainboard tailored for premium conference interactive panels. Built on the mature MTK G520 main control platform, it has been updated to the official V1.1 version after multiple rounds of iteration and optimization. First released in January 2026 and supplemented with physical images and detailed parameters in March the same year, this mainboard fully caters to commercial conference scenarios and has become a top choice for interactive terminals in government and enterprise meeting rooms, smart exhibition halls and multi-functional lecture halls.

  As the core computing unit, it adopts a powerful heterogeneous architecture. The octa-core CPU, consisting of two ARM Cortex-A78 cores and six ARM Cortex-A55 cores, works with the G57 MC2 GPU to handle system operations, video decoding and multi-tasking efficiently. For storage, the standard 8GB DDR4 memory can be expanded to 16GB, while the 128GB eMMC flash storage supports a maximum upgrade to 512GB, offering ample space for conference files and local applications. Running on deeply customized Android 16.0 with a 6.1 kernel, it is optimized for interactive operations, screen casting and peripheral connections, effectively reducing stuttering and latency. It natively supports 4K@60Hz dual-screen display and 4K@60fps video decoding, delivering ultra-clear and smooth images for video conferencing, courseware playback and split-screen demonstrations.

  Equipped with a comprehensive port array, this mainboard meets full-range connection demands. It integrates RS232 serial port, fiber output, dual RJ45 network ports, TF card slot, multiple USB ports, HDMI, DP and VGA interfaces. It supports customizable functional modules, including Wi-Fi 6+Bluetooth 5.2 and Wi-Fi 7+Bluetooth 5.4 combinations. It also connects with 8-channel PDM array microphones, NFC modules, ambient light sensors and human detection sensors. Its audio system is compatible with 2.0 or 2.2-channel speakers and subwoofers, delivering stable and high-quality sound for various meeting spaces.

  Rigorous electrical design guarantees long-term continuous operation. The mainboard supports multi-voltage power supply including 5V, 5V standby, 12V and 18V, with strict voltage and current limits for each circuit. Standardized power-on sequence prevents component damage from voltage surges. Its standby power consumption is below 0.3W without wake-up function, achieving outstanding energy efficiency. The maximum output current of USB 2.0 ports is limited to 500mA to avoid malfunctions caused by incompatible peripherals.

  It boasts excellent environmental adaptability. The operating temperature ranges from 0℃ to 40℃, and the storage temperature spans from -20℃ to 85℃. With humidity ranging from 10% to 85% during operation and 10% to 90% during storage (non-condensing), it adapts to diverse climates. All environmental tests follow the national standard GB/T 2423. Standardized connectors with clear pin definitions simplify assembly, debugging and maintenance, cutting production and after-sales costs.

  Strict usage guidelines are provided for this electrostatic-sensitive component. Operators must take anti-static measures during installation, and disassembling or plugging cables while powered on is prohibited. The mainboard supports mainstream audio and video formats such as AAC, DTS, H.264, H.265 and AV1. Customers need to complete relevant patent authorizations for applied interface and multimedia technologies independently.

  Overall, Qtenboard MG520.U combines strong computing power, rich interfaces, stable electrical performance and wide temperature adaptability. It is a cost-effective and reliable core hardware solution for smart conferences and commercial display industries, delivering long-lasting, stable and efficient operation for all kinds of commercial interactive terminals.