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This 3-meter 10ft USB 2.0 to RS232 DB9 male serial adapter cable adopts high-quality FTDI chipset, delivering stable and high-efficiency signal conversion between USB and standard RS232 serial port. It solves the problem of modern computers without legacy DB9 COM ports, perfect for connecting PLC, industrial controllers, POS terminals, routers, barcode scanners and serial debug devices. Fully compatible with Windows 2000/XP/Vista/7/8/8.1/10/11 and Mac OS X 10.6 and newer systems. Reinforced molded connectors and shielded cable effectively reduce electromagnetic interference, ensuring steady data transmission and long service life. Ideal for industrial control, equipment configuration, serial communication and professional debugging projects.