Black Box FA4509M-BK

Overview

The Black Box FA4509M-BK is an adapter kit designed to convert DB9 male connections to RJ45 female connectors, providing a practical solution for integrating legacy serial devices with modern network cabling. This kit is ideal for networking closets, telecom setups, or any environment where bridging different connection types is necessary. Its unassembled design allows you to configure the adapter to fit your specific installation needs, while included thumbscrews ensure a secure and tidy mounting, especially when used with blank patch panels.

Key features

• Converts DB9 male connectors to RJ45 female ports, enabling compatibility between serial devices and network cables
• Unassembled kit format offers flexibility to customize the adapter for various setups
• Thumbscrews included for easy and secure installation, preventing accidental disconnections
• Designed to fit blank patch panels, helping maintain organized and accessible cabling in professional environments
• Constructed to meet UL and UL 94 V-0 safety standards, ensuring durability and compliance with industry regulations

Key specs

• Connector type: DB9 male to RJ45 female
• Kit assembly: unassembled for flexible configuration
• Mounting hardware: thumbscrews included
• Safety standards: UL and UL 94 V-0 certified
• Color: black

Connectivity and compatibility

This adapter kit supports conversion between DB9 serial interfaces and RJ45 modular connectors, making it suitable for use with devices that require serial communication over network-style cabling. It also supports RJ11 connections, broadening its compatibility with various telecom and networking equipment. The thumbscrew mounting system ensures a stable connection in patch panels or other rack-mounted setups.

Installation and setup

The unassembled nature of this kit allows you to tailor the adapter to your specific cabling requirements. The included thumbscrews simplify securing the adapter in place, reducing installation time and improving cable management. This makes it a practical choice for technicians who need a reliable and neat solution in complex wiring environments.

Ideal uses and environments

This adapter kit works well in professional IT and telecom environments where legacy serial devices must interface with modern network infrastructure. It fits naturally into networking closets, server rooms, and telecom racks, supporting setups that demand organized cabling and secure connections. It is a strong choice for technicians and engineers who require a dependable and customizable adapter for serial-to-network conversions.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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