StarTech DB9 RS232 Null Modem Cable is a personal computer accessory that links RS232 serial ports for dependable data transfer. Engineers and maintenance teams will appreciate a straightforward, shielded 2 metre cable that removes fiddly adapters and keeps connections stable. Is a dedicated null modem cable still the simplest solution for legacy equipment on modern desks?
⚡ At a Glance
- • Connection Quality: DB9 female-to-female, 9-pin null modem wiring with high-quality shielding to preserve signal integrity
- • Best for: Technicians, engineers and anyone needing reliable connections to legacy RS232 kit
- • Not ideal for: Systems that require integrated USB or modern serial-over-USB connectivity
A 2 metre, black DB9 female-to-female RS232 null modem cable designed for connecting serial devices and transferring files. High-quality shielding helps reduce electromagnetic interference for more reliable communication.
Reliable legacy connections - with DB9 female-to-female RS232 wiring
Null modem wiring swaps transmit and receive lines so two serial hosts communicate directly; 9-pin DB9 connectors match standard RS232 ports. Female-to-female configuration removes the need for gender changers when linking host devices.
Direct links between PCs, consoles or instrumentation without extra adapters, speeding setup and reducing connector hassles.
Stable data transfer - with high-quality shielding
Shielded cable construction blocks external electromagnetic interference from nearby equipment, preserving cleaner signal paths over the 2 metre run. Shielding lowers noise that can corrupt asynchronous serial data.
Fewer transmission errors during configuration, logging or file transfers for consistent, repeatable results.
Practical reach for benches and racks - with 2 metre length
Two metres provides a modest span that reaches between adjacent desks or rack bays without excessive slack. Length is long enough for most bench-top tasks while remaining tidy in typical workspaces.
Allows neat routing across workbenches and between nearby equipment without trailing cable mess.
✨ The 4 Key Reasons for StarTech DB9 RS232 Null Modem Cable
- Sturdy DB9 connectors – Ensures reliable mechanical performance through repeated plug cycles.
- Broad RS232 compatibility – Connects PCs, switches, consoles and lab kit without adapters.
- Solid shielding – Reduces interference for consistent and error-free serial communications.
- 2-metre length – Reaches between desks or adjacent rack units without excess slack.
📋 Technical Details at a Glance
- Category: Personal Computer
- Length: 2 metre
- Colour: Black
- Connector type: DB9 female to DB9 female
- Pin count: 9-pin
❓ Frequently Asked Questions
Q: Is this a null modem cable or straight-through cable?
A: This is an RS232 null modem cable, configured for direct host-to-host communication using female DB9 connectors.
Q: Will the cable reduce interference from nearby equipment?
A: High-quality shielding is specified to help prevent electromagnetic interference, supporting cleaner serial signals.
Q: How long is the cable and what colour is it?
A: The cable is 2 metres long and supplied in black.
🏆 Our Verdict
Suitable for technicians, engineers and anyone maintaining legacy RS232 equipment, the cable makes serial connections straightforward and dependable. A shielded, DB9 female-to-female null modem design delivers stable data transfer across a practical two metre span. Durable connectors and effective shielding give reliable long-term value for workshop and lab use.
