Product images are provided for reference and may not represent the exact model, configuration, or included components.

No Bots, Just Experts

Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Description

C2G 02781 DB9 F/F Serial RS232 Mini Gender Changer

Overview

The C2G 02781 is a compact DB9 female-to-female gender changer designed to adapt serial RS232 connections. This device is useful for extending the reach of existing serial cables or for reconfiguring the gender of a port on a device. Its small form factor minimizes added bulk in tight installations, making it suitable for connecting modems, terminals, or other serial peripherals where port configuration or cable length is an issue.

Compatibility

This gender changer is compatible with any standard DB9 serial RS232 connection. It functions as a passive adapter, requiring no external power or drivers. It can be used to connect two male DB9 cables together, effectively creating a longer serial link, or to connect a male DB9 cable to a female DB9 port on equipment. It is commonly deployed in industrial automation, point-of-sale systems, and legacy data acquisition setups that rely on RS232 communication.

Installation Notes

Installation involves simply plugging the C2G 02781 between two DB9 connectors. Ensure both connectors are clean and free of debris before mating. The unit is designed for indoor use and should not be exposed to moisture or extreme temperatures. The small size means it can be easily integrated into existing cable runs without significant space requirements.

What's in the Box

  • 1x C2G 02781 DB9 F/F Serial RS232 Mini Gender Changer
Specifications
Overview: CABLES TO GO 02781 DB9 F/F SERIAL RS232 MINI GENDER CHANGER (COUPLER) - CHANGES
Connector 1: DB9 Female
Connector 2: DB9 Female
Shipping Weight: 0.03 lb
Prop 65 Warning: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
Country of Origin: China
UNSPSC: 43211505
Q&A
Reviews

C2G Cables to GO 02781 DB9 F/f Serial RS232 Mini Gender Changer (coupler) - Changes

$6.99

RELATED PRODUCTS

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources