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StarTech.com • 9FMNM-3M-RS232-CABLE

3m DB9 RS232 Null Modem Serial Cable

Connect two compatible DTE serial devices over 3m with a DB9 male-to-female null modem crossover cable, shielded construction and secure thumbscrews.

3m RS232DB9 male/femaleNull modem28AWG shielded
StarTech 9FMNM-3M-RS232-CABLE 3m DB9 RS232 Null Modem Serial Cable
Product highlights

Key features

Null modem crossover wiring

Designed for direct RS232 communication between two compatible DTE devices without a modem or other DCE device.

3m connection reach

Provides flexible positioning for compatible serial equipment at distances up to 3 metres.

Shielded construction

28AWG conductors, aluminium-Mylar foil and metal-shell connectors help reduce electromagnetic interference.

Secure DB9 connectors

Integrated thumbscrews reduce accidental disconnection, while moulded strain relief protects the cable ends.

Clear product guidance

What to know

Use for the correct serial topology

This is a null modem crossover cable for compatible DTE-to-DTE links; it is not a straight-through serial extension cable.

Built for dependable serial control

Suitable for compatible computers, controllers, terminals and other RS232 equipment requiring DB9 male-to-female null modem wiring.

Important: Check the device manuals for DB9 gender, pinout and null modem compatibility. This crossover cable is intended for DTE-to-DTE use and is not wired straight through.
Buy with confidence

Australian version with official StarTech.com warranty

Lifetime manufacturer warranty

This is the Australian version supplied by DeviceDeal and is covered by an official StarTech.com lifetime manufacturer warranty in Australia. Keep your DeviceDeal invoice as proof of purchase. Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility and product assessment.

Frequently asked questions

StarTech 9FMNM-3M-RS232-CABLE FAQ

What is the StarTech 9FMNM-3M-RS232-CABLE?

It is a DB9 male-to-female RS232 null modem crossover cable: Connect two compatible DTE serial devices over 3m with a DB9 male-to-female null modem crossover cable, shielded construction and secure thumbscrews.

What are the main features of 9FMNM-3M-RS232-CABLE?

Null modem crossover wiring: Designed for direct RS232 communication between two compatible DTE devices without a modem or other DCE device. 3m connection reach: Provides flexible positioning for compatible serial equipment at distances up to 3 metres. Shielded construction: 28AWG conductors, aluminium-Mylar foil and metal-shell connectors help reduce electromagnetic interference.

What must I check before buying 9FMNM-3M-RS232-CABLE?

Check the device manuals for DB9 gender, pinout and null modem compatibility. This crossover cable is intended for DTE-to-DTE use and is not wired straight through.

What is included with 9FMNM-3M-RS232-CABLE?

1 x null modem serial cable, female to male

Does 9FMNM-3M-RS232-CABLE require compatible equipment?

Yes. Connector type, interface standard, system support and the complete installation must match the product requirements shown in the specifications.

Is 9FMNM-3M-RS232-CABLE the Australian version?

Yes. DeviceDeal supplies the Australian version, backed by the official StarTech.com lifetime manufacturer warranty in Australia.

Do I need to keep my DeviceDeal invoice?

Yes. Keep the DeviceDeal tax invoice as proof of purchase if manufacturer warranty support is required.

What warranty covers 9FMNM-3M-RS232-CABLE?

9FMNM-3M-RS232-CABLE carries an official StarTech.com lifetime manufacturer warranty in Australia, subject to StarTech.com terms, eligibility and product assessment.

(9FMNM-3M-RS232-CABLE)

StarTech.com 9FMNM-3M-RS232-CABLE

Features and highlights

Explore the main capabilities, practical advantages and key points to compare.

Null modem crossover wiring

Designed for direct RS232 communication between two compatible DTE devices without a modem or other DCE device.

3m connection reach

Provides flexible positioning for compatible serial equipment at distances up to 3 metres.

Shielded construction

28AWG conductors, aluminium-Mylar foil and metal-shell connectors help reduce electromagnetic interference.

Secure DB9 connectors

Integrated thumbscrews reduce accidental disconnection, while moulded strain relief protects the cable ends.

  • Null modem crossover wiringDesigned for direct RS232 communication between two compatible DTE devices without a modem or other DCE device.
  • 3m connection reachProvides flexible positioning for compatible serial equipment at distances up to 3 metres.
  • Shielded construction28AWG conductors, aluminium-Mylar foil and metal-shell connectors help reduce electromagnetic interference.
  • Secure DB9 connectorsIntegrated thumbscrews reduce accidental disconnection, while moulded strain relief protects the cable ends.
  • Lifetime warrantyAustralian version with official StarTech.com manufacturer warranty coverage in Australia.
StarTech.com • 9FMNM-3M-RS232-CABLE

Complete technical specifications

Product specifications are grouped below for clear desktop and mobile viewing.

StarTech 9FMNM-3M-RS232-CABLE 3m DB9 RS232 Null Modem Serial Cable

Verified Product Summary

Product ID9FMNM-3M-RS232-CABLE
Cable typeRS232 null modem crossover cable
Connector ADB-9 male
Connector BDB-9 female
Cable length3m
Supported protocolNull modem RS232
Conductors7 conductors, 28AWG
ShieldingAluminium-Mylar foil with drain; shielded metal-shell connectors
JacketBlack PVC with moulded strain relief
Connector platingNickel
DimensionsApproximately 3000 x 33 x 15mm
Product weight143.5g
Included1 x null modem serial cable, female to male
ImportantNot a straight-through serial cable
WarrantyLifetime
SKU 9FMNM-3M-RS232-CABLE
Barcode # 65030894449
Brand STARTECH
Shipping Weight 0.1500kg
Shipping Width 0.002m
Shipping Height 0.022m
Shipping Length 0.012m
Australian product assurance

Official StarTech.com manufacturer warranty

Purchase with confidence from DeviceDeal.

Lifetime manufacturer warranty

This 9FMNM-3M-RS232-CABLE is the Australian version and is covered by an official StarTech.com lifetime manufacturer warranty in Australia.

Keep your DeviceDeal tax invoice as proof of purchase if warranty assistance is required.

Please note: Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility requirements and product assessment.

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STARTECH RS232 Serial Null Modem Cable - 3m Seria - 9FMNM-3M-RS232-CABLE

Model # 9FMNM-3M-RS232-CABLE

  • SKU: 9FMNM-3M-RS232-CABLE

$18.00
In Stock



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