Build Your Complete System
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
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.
Black Box FA440-R2 DB9 Male/DB9 Male Gender Changer
Overview
The Black Box FA440-R2 is a DB9 male-to-male gender changer. This adapter is used to convert a male DB9 connector to another male DB9 connector, allowing you to connect two serial cables with male ends or to change the gender of a port for a direct cable connection. It's a simple, passive adapter for extending or modifying serial cable runs in environments where direct serial communication is still required, such as legacy industrial equipment or specific diagnostic tools.
Compatibility
This gender changer is compatible with any standard DB9 serial port or cable. It functions as a passive adapter, meaning it does not require external power or active signal conversion. Use it to connect two DB9 male cables together or to connect a DB9 male cable to a DB9 female port on a device or computer. It is suitable for use with RS-232 serial communication interfaces.
Installation Notes
Installation involves simply plugging the FA440-R2 between two DB9 connectors. Ensure a secure connection by tightening the thumbscrews on both DB9 connectors if present. The adapter is passive and does not require drivers or software configuration. Its compact form factor ensures it does not add significant bulk to cable runs.
What's in the Box
- 1x FA440-R2 DB9 Male/DB9 Male Gender Changer
Black Box Gender Changer - DB9 Male/DB9 Male - FA440-R2
Build Your Complete System
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
Looking for more Black Box products? Shop the full Black Box catalog →
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.
Deployment & Configuration Support
- Access fixed-scope support for rollout planning
- User setup guidance
- Migration and system standardization across single-site or multi-site deployments
Guides, Tools & Calculators
- PoE requirements
- Storage retention
- Camera selection and deployment methodology