DB9 RS-232 Straight-Through Serial Cable Used to extend the COM port connection between computers and certain old devices compatible with RS-232, overcoming cable length limitations and allowing RS232 devices to be placed farther from the computer, enhancing peripheral flexibility. (NOT 15Pin VGA Cable) Superior Quality Gold-plated RS232 connectors ensure stable connections. The aluminum housing improves heat dissipation and extends service life. The internal wires are 30AWG with pure copper cores and aluminum foil shielding to prevent electromagnetic interference. Both ends are equipped with screws to ensure a secure connection. We've included 15 cable ties to help you keep your cords organized and tidy. Straight-Through Configuration All 9 connectors are wired straight-through, complying with the RS232 serial protocol and arranged by pin. Pin layout: 1-1 / 2-2 / 3-3 / 4-4 / 5-5 / 6-6 / 7-7 / 8-8 / 9-9 / Ground-G. Plug and play. Wide Compatibility Used to connect serial modems, scanners, printers, UPS, ISDN, plotters, cameras, barcode/embroidery machines, touch screens, microcontrollers, factory test equipment, switches, routers, etc., equipped with DB9 to transfer files, share resources, establish direct serial communication links, debug, and test. Compatible with Windows, Windows Vista, Mac OS, and Linux operating systems. 2 Years Warranty We provide a 2-Year warranty. If there is any quality issue, you can get a refund or replacement. If you have any questions, please do not hesitate to contact us via Amazon first. We will provide you with the best service and solution.

• 【DB9 RS-232 Straight-Through Serial Cable】：This 【Female to Female】DB9 RS-232 Serial Cable used to extend the COM port connection between computers and certain old devices compatible with RS-232, overcoming cable length limitations and allowing RS232 devices to be placed farther from the computer, enhancing peripheral flexibility. (NOT 15Pin VGA Cable)
• 【Superior Quality】: Gold-plated RS232 connectors ensure stable connections. The aluminum housing improves heat dissipation and extends service life. The internal wires are 30AWG with pure copper cores and aluminum foil shielding to prevent electromagnetic interference. Both ends are equipped with screws to ensure a secure connection. We've included 15 cable ties to help you keep your cords organized and tidy.
• 【Straight-Through Configuration】: All 9 connectors are wired straight-through, complying with the RS232 serial protocol and arranged by pin. Pin layout: 1-1 / 2-2 / 3-3 / 4-4 / 5-5 / 6-6 / 7-7 / 8-8 / 9-9 / Ground-G. Plug and play.
• 【Wide Compatibility】: Used to connect serial modems, scanners, printers, UPS, ISDN, plotters, cameras, barcode/embroidery machines, touch screens, microcontrollers, factory test equipment, switches, routers, etc., equipped with DB9 to transfer files, share resources, establish direct serial communication links, debug, and test. Compatible with Windows, Windows Vista, Mac OS, and Linux operating systems.
• 【2 Years Warranty】: We provide a 2-Year warranty. If there is any quality issue, you can get a refund or replacement. If you have any questions, please do not hesitate to contact us via Amazon first. We will provide you with the best service and solution.