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Black Box FA4525F-BK

Modular Adapter Kit DB25 Female to RJ45 Female (Black)

Regular price $2700

Highlights:

  • Custom wiring supports 6, 8, or 10-wire serial connections
  • Includes thumbscrews for quick secure mounting without tools
  • Black housing helps with cable management and easy ID
  • Unassembled design allows on-site wiring customization
  • Bridges legacy DB25 serial ports to modern RJ45 cabling

Every order includes:

  • Fast and secure shipping
  • Free 30-days returns
  • Manufacturer warranty
  • Lifetime customer support

Description

Overview

The Black Box FA4525F-BK is a modular adapter kit designed to convert a DB25 female RS-232 port into an RJ45 female modular jack. This kit allows you to customize the wiring layout by assembling it yourself, supporting 6-, 8-, or 10-wire configurations to fit a variety of serial communication needs. Its black housing and included thumbscrews make it easy to install and identify in complex setups, bridging legacy serial equipment with modern structured cabling systems.

Key features
  • Customizable wiring layout lets you match the exact pinout of your devices for flexible serial connections
  • Supports multiple wire configurations (6-, 8-, and 10-wire) to accommodate simple control signals or more complex serial data
  • Includes thumbscrews for quick and secure attachment to rack-mounted or desktop equipment without extra tools
  • Black housing aids in color-coded cable management and easy identification in busy racks or patch panels
  • Unassembled design allows field service engineers and technicians to adapt the adapter on site to unexpected pinouts
  • Provides a clean and dependable solution for integrating DB25 serial ports with RJ45 patch cabling infrastructure
Key specs
  • Connector type: DB25 female to RJ45 female modular jack
  • Wire configurations supported: 6-wire, 8-wire, 10-wire
  • Assembly: Unassembled for custom wiring
  • Housing color: Black
  • Installation hardware: Included thumbscrews for secure mounting
Connectivity and compatibility

This adapter kit is ideal for connecting legacy RS-232 serial devices with DB25 female ports to modern structured cabling systems using RJ45 modular jacks. It works well in environments where Cat-5 or Cat-6 cabling is already installed, enabling network administrators to run console lines efficiently. The customizable wiring also ensures compatibility with a wide range of serial equipment by allowing precise pinout matching.

Installation and setup

Assembly is straightforward and flexible, giving you control over the wiring to suit your specific device requirements. The included thumbscrews simplify securing the adapter to various equipment types, such as rack-mounted gear, desktop units, or test benches, without needing additional tools. This makes it practical for quick field adjustments and reconfigurations in lab or service environments.

Ideal uses and environments

This adapter kit fits well in professional IT setups, test labs, and field service operations where legacy serial hardware must interface with modern network cabling. It is a strong choice for network administrators managing console connections, engineers needing adaptable serial interfaces on site, and technicians who require flexible, reliable serial-to-modular adapters for diverse equipment.

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Shipping and delivery

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 and refunds

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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Product warranty

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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