Hard-to-Find Serial Interface Cables – Available at PCCables.com
Why Finding the Right Serial Cable Matters
In a world dominated by USB and wireless connections, serial cables remain critical in industries ranging from factory automation to medical equipment. The problem? These cables can be nearly impossible to find in mainstream retail.
At PCCables.com, we specialize in hard-to-find serial interface cables—helping engineers, technicians, and IT professionals keep their essential systems running smoothly.
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PCCables.com’s Serial Cable Selection:
Unlike generic retailers, PCCables.com stocks an unmatched range of serial communication cables and adapters in various lengths, including:
- DB9 Male to DB9 Female - Links PCs, modems, and devices for RS-232 communication

- DB9 to DB25 Serial Cables – bridge old mainframes with newer PCs.

- Null Modem Cables and Adapters – direct device-to-device communication without modems.


Null Modem DB9 Female to DB25 Female and DB25 Female to DB25 Female Adapter
- USB to Serial Converters – Connect modern computers to classic RS-232 equipment. Our converters are available now with Prolific and FTDI bridge chipsets.



DB9 RS232 Serial to USB 2.0 Converter and DB9 to USB-A Adapter and DB9 to USB-C Adapter
- DB9 and DB25 Gender Changers & Adapters – Match male or female connectors configuration without rewiring.


- RJ45 to DB9 and RJ45 to DB25 Modular Adapters – Route serial signals over structured cabling for cleaner installations.


- DB9 Splitter Cables – Share one serial port with multiple devices.


Splitter DB9 Male to DB9 Female and Splitter DB9 Female to DB9 Male
- DB25 Male to DB25 Female Splitter - Splits a single DB25 port into two.

- Serial Port Switch Boxes – Manage multiple serial devices from a single workstation.



DB9 4 Male to 1 Female ABCD Switch and DB9 2 Male to 1 Female AB Switch


Why Serial Cables Are Still Essential
- Industrial Equipment: CNC machines, PLCs, and lab instruments rely on RS-232 serial connections for consistent communication.
- Legacy Hardware: Hospitals, warehouses, and government systems often depend on DB9 and DB25 connectors that are decades old but still in use.
- Custom Applications: From embedded electronics to point-of-sale systems, many setups require null modem cables, gender changers, or custom pinouts that aren’t sold in big-box stores.
- Flexible Length Options: Available in a range of sizes to suit desktop use, rack installations, and long-distance runs.
Features That Set Our Cables Apart
- Wide Compatibility: RS-232, RS-422, and RS-485 standards supported.
- Connector Variety: DE9, DB25, Centronics, and RJ45-to-DB9 adapters.
- Professional Quality: Shielded wiring, molded connectors, and strain relief for durability.
- Adaptability: Serial extension cables, null modem adapters, and gender changers to fit unusual setups.
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Why Choose PCCables.com for Serial Cables?
- Hard-to-Find Availability: We carry the discontinued and legacy cables others don’t.
- Expert Knowledge: Our team understands pinouts, crossovers, and adapter setups.
- Proven Reliability: The team at PCCables.com has engineered and tested our serial cables on thousands of devices over the years—from industrial controllers to lab equipment—and we’re continually expanding our supported device list.
- Fast Shipping: Stock ready to ship for urgent repairs or installations.
- Trusted by Professionals: Engineers, IT admins, and technicians worldwide rely on us for reliable serial interface cables.
Your Source for Rare Serial Cables
Whether you’re repairing legacy systems, integrating industrial equipment, or experimenting with embedded electronics, having the right serial communication cable can make all the difference.
At PCCables.com, we’ve built our reputation on supplying hard-to-find serial cables—from DB9 to DB25 cables to RS-232 to RS-485 converters. And because our team has tested these cables across thousands of devices, you can be confident they’ll work when you need them most.
👉 Explore our full selection here: Shop Serial Interface Cables at PCCables.com
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