1. motherboards are extended with a 9-pin COM communication port. When you want to use the serial port for data communication, but you cannot find the DB9 serial port on the external interface of the motherboard, you can use this wire to lead out a standard DB9 pin serial port 2. Fasten a DB9 (RS232) Serial port to any computer system which has an RS232 serial panel mount receptacle，Flat ribbon cable saves space and time in circuit interconnect assemblies 3. Connector Type: DB9 male connector and one IDC 10-pin (2x5) female motherboard connector. 4. The 9-Pin Serial Male to 10-Pin Motherboard Header Cable is made of high-quality materials and expertly designed for durability and reliability. 5. Widely used in terminal adapters, barcode scanners, punch cards, desktop computers, cash registers, printers, POS machines, LED displays and other serial devices
