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TPC-5621 is an embedded industrial capacitive touch tablet computer. It adopts a fanless and silent design, combining industrial display and touchscreen technology. The product is compact in structure, easy to install and convenient to operate. It is a high-performance and highly reliable industrial computer system. The whole machine adopts a 21.5-inch high-definition LCD screen with a resolution of 1920x1080, featuring rich and delicate colors and a wide viewing Angle. It is powered by a 12-24V wide-voltage DC and is equipped with a round-mouth DC power connector with locking screws to prevent accidental detachment. The touch control adopts a projected capacitive screen and supports 10-point touch simultaneously. The main unit is based on the IntelElkhartLake processing platform CPU, featuring the J6412 processor, equipped with a large-capacity solid-state SSD, DDR4 memory supporting 1x16G capacity, 4xUSB3.0, and dual intel gigabit network cards. The COM1 port supports RS232/422/485, and the COM2 port supports RS232/485. There is one M.2 expansion slot inside for 4G expansion, another M.2 for WIFI expansion, and one HDMI and one DP interface for multi-display mode. The TPC-5621 supports multiple installation methods: hook-mounted embedded installation, VESA-based wall-mounted and cantilevered installation. The front panel complies with the NEMA/IP65 water and dust resistance standard, preventing water splashes from entering during installation in the control cabinet. The high-strength all-steel sealed box structure has the functions of shock resistance and vibration protection. Especially, the specialized EMC design enables the entire machine to have excellent anti-interference ability and be able to adapt to the harsh working environment in industrial sites. It is widely applied in industrial scenarios with strong interference such as factory automation, mechanical manufacturing, numerical control equipment, textile equipment, communication networks and power automation.