DB9 to RJ45 Modular Adapter F/F StarTech.com GC98FF

The StarTech.com DB9 to RJ45 Modular Adapter (F/F) GC98FF provides a compact solution to connect DB9 serial devices to RJ45 modular cabling. Designed for use with RS232, RS422 and RS485 serial interfaces, this adapter facilitates the integration of serial equipment into systems that use modular RJ45 connections. The adapter has a durable black housing and is covered by StarTech.com's Lifetime Warranty.

Advantages

This DB9 to RJ45 adapter supports modular serial wiring standards for RS232, RS422 and RS485, enabling flexible system configurations without the need to modify existing cabling significantly. Its female-to-female design allows straightforward connection between devices and patch panels or inline wiring. The compact, robust construction ensures reliable electrical contact and easy installation in tight spaces.

Suitable for

• Connecting DB9 serial devices to RJ45 structured cabling or patch panels
• Extending serial connections over modular cabling in industrial or commercial installations
• Integrating legacy RS232/RS422/RS485 equipment with networked or modular wiring systems

Key specifications

• Model: StarTech.com GC98FF
• Connector A: DB9 female (F)
• Connector B: RJ45 female (F)
• Supported interfaces: RS232, RS422, RS485
• Colour: Black
• Manufacturer warranty: Lifetime Warranty (StarTech.com)
• MPN: GC98FF
• EAN: 065030773508

How to use

Insert the DB9 female connector onto the matching male DB9 serial port of your device, and connect the RJ45 female end to the corresponding RJ45 plug or patch panel. Ensure that the pinout and serial interface (RS232, RS422 or RS485) match between connected devices; if necessary, verify or reconfigure the cabling/pinout at the RJ45 termination to match the required serial wiring standard. No drivers are required for the passive adapter itself.

Usage recommendations

Confirm the serial interface and pinout mapping before installation to prevent signal mismatches. For long-distance or industrial installations, follow EMI/grounding best practices and use appropriate shielded cabling if required by the environment.