USB to RS232 Serial Port Cable — DB9 Conversion Cable (USB male to RS232 DB9 female, COM Port Female Head) Turn a USB port into a standard RS232 COM port with this simple, reliable converter cable. Designed to connect modern computers, laptops, and devices that only have USB to legacy equipment that uses a DB9 RS232 serial interface, this cable restores serial communication without opening your device or installing expansion cards. Key benefits Restores compatibility with legacy serial devices: connect barcode scanners, modems, industrial controllers, GPS units, medical devices, and other equipment using a DB9 RS232 interface. Simple connection: USB male on one end and a DB9 RS232 female (COM port, female head) on the other end provides a direct, physical conversion between USB and serial. Saves time and expense: no need to retrofit systems or hardware — use existing serial equipment with modern USBonly computers. Features and attributes Functionality: Converts USB to RS232 serial (DB9) so devices that communicate over a standard COM port can interface with a USB port. Connector types: USB (male) to DB9 RS232 (female, COM port / female head). Compatibility: Works with devices that use a standard RS232 DB9 female serial connection (COM port). Ideal for legacy serial peripherals and equipment. Construction: Molded connector ends for reliable physical connection and reduced cable stress. (Cable design focuses on durability and stable connections.) Performance: Supports standard RS232 serial communication for data exchange between USB hosts and RS232 devices. Common applications Industrial and automation: Connect PLCs, CNC controllers, or factory instrumentation that use DB9 RS232 ports to modern PCs or industrial PCs with USB. Pointof and retail: Interface barcode scanners, receipt printers, scales, and other POS peripherals with USBonly terminals. Field and diagnostic equipment: Link GPS receivers, test instruments, legacy medical devices, and communication modems to laptops for configuration, logging, or diagnostics. What to expect A straightforward USB male to DB9 female RS232 cable that provides physical conversion from USB to a COM port (female head). Check device requirements and drivers when ; some host systems or devices may require a software driver for proper operation. Practical tips Confirm the target device uses RS232level signaling and a DB9 female connector before . Keep connectors clean and secure during use to maintain reliable serial communication. If your device requires specific drivers, consult the device or system documentation to install the correct driver for your operating system. This USB to RS232 DB9 conversion cable provides a clean, practical solution for connecting legacy serial equipment to modern USB ports without changing the original devices.