Black Box FM590

Overview

The Black Box FM590 is an unshielded CAT5e keystone coupler designed to seamlessly join two Ethernet cables without requiring extra tools. It features two RJ-45 female jacks arranged in a straight-pinned configuration, supporting both T568A and T568B wiring standards. This makes it suitable for extending or repairing network runs in residential, small business, or data center environments. Its compact and durable design fits neatly into standard wallplates or patch panels, providing a clean and professional finish.

Key features

• Unshielded CAT5e design that supports high-speed Ethernet connections up to 100 MHz
• Two RJ-45 female jacks allowing easy pass-through connection between Ethernet cables
• Compatibility with both T568A and T568B wiring standards for flexible installation options
• Snaps into standard wallplates or patch panels, including Black Box GigaStation2, for a tidy setup
• Compact and durable construction ideal for crowded wiring closets and tight spaces
• White finish that blends with most wallplates and room décor for a discreet appearance

Key specs

• Category: CAT5e unshielded
• Connector type: Two RJ-45 female jacks
• Wiring standards supported: T568A and T568B
• Frequency rating: Up to 100 MHz
• Compatibility: Fits standard keystone wallplates and patch panels
• Color: White

Connectivity and compatibility

This coupler works well with a wide range of Ethernet cables and network devices that use CAT5e standards. It is especially compatible with Black Box GigaStation2 wallplates, ensuring a seamless integration into structured cabling systems. Whether you are extending an existing cable run or repairing a short cable, it provides a reliable connection point without signal loss or interference.

Installation and setup

Installation is straightforward and tool-free, making it accessible for both professional technicians and home users. The coupler snaps securely into any standard keystone wallplate or patch panel, allowing quick deployment in network closets, office workstations, or home networking panels. Its compact size helps maintain an organized and clutter-free environment.

Ideal uses and environments

The FM590 is well suited to environments where extending or repairing Ethernet cabling is necessary without replacing entire cable runs. It fits naturally in home networks, small business offices, and data centers where space is limited and a clean installation is important. This coupler is a practical choice for network technicians who need a reliable and quick solution for cable management challenges.

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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