Serial cabling that extends RS-232 connections reliably for workshops and labs. Confidence when diagnosing equipment or moving scanners around a bench. Is DTECH DB9 RS232 Serial Extension Cable the practical addition your test bench needs?
⚡ At a Glance
- • Connection Reliability: Shielded straight-through DB9 wiring with screw-mounted connectors for steady data transfer
- • Best for: Technicians, hobbyists and workshops maintaining RS-232 equipment
- • Not ideal for: Modern USB-only devices or systems requiring native USB serial adapters
Male-to-female DB9 extension with pin-to-pin straight-through wiring and AL foil shielding. Screws on each end lock the connectors for a secure physical connection.
Stable data transfers - with shielded straight-through DB9 wiring
Pin-to-pin wiring follows the standard DB9 pinout (1-1, 2-2, 3-3, ... 9-9) while AL foil shielding reduces electromagnetic interference. The wiring maintains signal routing exactly as the original connector.
Reliable serial communication for scanners, modems, printers and factory test equipment, reducing retries and transmission errors.
Secure physical connection - thanks to screw-mounted DB9 connectors
Screws on both connector ends fasten into D-sub ports to hold the connection mechanically during handling. That hardware-grade fastening lowers the risk of accidental disconnects.
Suited to production lines and repair benches where cables are moved or handled frequently and must stay connected.
Easy to customise and repair - with 30AWG wires and standard colour code
Internal 30AWG wires follow the standard colour code and are simple to solder for custom pinouts or patch repairs. The gauge is small enough for neat joins yet adequate for RS-232 signalling.
Useful for makers and technicians who need quick on-site modifications or repair without complex tooling.
✨ The 4 Key Reasons for DTECH DB9 RS232 Serial Extension Cable
- Screw-lock connectors - Prevents accidental unplugging during diagnostics and equipment movement
- 30AWG internal wires - Allow easy soldering for custom pinouts or repairs
- AL foil shielding - Reduces EMI for steadier serial communication in noisy environments
- Pin-to-pin straight-through wiring - Ensures direct compatibility with standard RS-232 peripherals without rewiring
📋 Technical Details at a Glance
- Category: RS-232 Serial Extension Cable
- Connector Type: DB9 male to DB9 female
- Length: 3 m / 10 ft
- Wiring: Straight-through, pin-to-pin (1-1, 2-2, 3-3, 4-4, 5-5, 6-6, 7-7, 8-8, 9-9)
- Shielding: AL foil shielded
❓ Frequently Asked Questions
Q: Is the cable compatible with RS-232 devices?
A: Pin-to-pin straight-through wiring follows the standard DB9 pinout (1-1 through 9-9) for RS-232C compatibility.
Q: Will the connection stay secure during handling?
A: Screws on each DB9 connector lock the connection to ports, providing a mechanically secure link for stable data communication.
Q: Can the cable be soldered or modified for custom use?
A: Internal 30AWG wires use a standard colour code and are easy to solder for custom pinouts or repairs.
🏆 Our Verdict
Ideal for technicians, makers and workshops that maintain legacy RS-232 equipment. Durable DB9 connectors, shielded straight-through wiring and solder-friendly 30AWG conductors make the cable a dependable link for serial peripherals. Long-term value comes from reliable connections and easy repairability, useful where legacy serial ports remain part of the workflow.
