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Mechanical mouse mainly consists of roller ball, roller column and grating signal sensor, 1.6M line length. The use of safety, over-current, over-voltage, over-temperature, short circuit protection, anti-static protection Mechanical COM port mouse (also known as 9-pin or square mouse) connected to the computer host, the interface is generally used in four lines, respectively, TXD, ground, RTS and RXD signals This new COM port mechanical mouse (also known as 9-pin or square port mouse), with high scrolling accuracy, with the human body streamlined appearance design, feel good, extremely fine workmanship, flexible, durable, good compatibility Mechanical COM port mouse is widely used in industrial control, medical instruments, railroad equipment, CNC machine tools and other fields Satisfactory after-sales service,If you have other questions, you can contact us at any time