here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
- Free 30-day Returns
$33.79
Ships from China.
Meet Your Seller
12 Pack DB9 RS232 Serial Female to Female Gender Changer Coupler, 9Pin Serial Port Connector Adapter
- Value 12-pack bulk set of DB9 female-female couplers, ideal for industrial equipment, POS machines, PLC controllers and serial device wiring projects
- Standard 9Pin RS232 DB9 pinout, connects two male DB9 serial cables together to extend serial communication lines
- Compact mini lightweight design, small footprint without bulky housing, easy to install in tight cabinet and equipment gaps
- Solid metal shielded casing reduces electromagnetic interference, ensures stable data transmission without signal dropout
- Plug-and-play passive adapter, no power supply or driver needed, widely compatible with RS232, RS485, industrial controllers and serial scanners
+
+
Overview
Specs
Reviews
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
This package contains 12 pieces of DB9 female to female serial gender changers, designed as an interface bridge for standard 9-pin RS232 serial cables. It features dual DB9 female ports to link two male-ended serial cords and realize line extension or equipment serial port conversion.
Adopting full 9-pin through-wiring design, all signal pins are fully connected to support complete serial data communication. The integrated metal shielding shell effectively isolates external electromagnetic noise, preventing data transmission errors and signal loss in complex industrial wiring environments.
Mini streamlined size saves installation space inside control cabinets, cash registers and monitoring hosts. Durable plastic shell with reinforced pin sockets avoids loose contact after repeated plugging and unplugging, extending long-term service life.
No software configuration or external power required. Just insert two DB9 male serial cables into both sides of the coupler to complete serial signal connection instantly. Perfect for factory PLC equipment, supermarket POS terminals, serial barcode scanners, industrial testing instruments and server console debugging wiring.
Note: This is a passive straight-through serial coupler, only used for extending RS232 serial signal lines, cannot convert signal transmission protocols.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by TechCore Supply Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
LOADING...