Black Box KVXLCHF-100

Overview

The Black Box KVXLCHF-100 is a KVM extender kit designed to extend HDMI video, USB 2.0, audio, and serial control signals over a single strand of single mode fiber up to 33,000 feet (10 km) from the host computer. It supports 4K resolution at 30 Hz, ensuring that video streams, dashboards, and graphics remain sharp and accurate even at long distances. This solution is ideal for environments where remote workstation access is needed without sacrificing video quality or peripheral connectivity.

Key features

• Extends KVM signals over fiber optic cable to distances up to 10 km, enabling flexible workstation placement far from the host system.
• Supports HDMI video at 3840 x 2160 resolution with 30 Hz refresh rate for clear and detailed visuals.
• USB 2.0 support allows connection of keyboards, mice, and other USB peripherals with full functionality.
• Bi-directional audio channel supports headsets or speakers, enhancing communication and multimedia use.
• RS-232 serial channel enables integration with touchscreens or other serial devices for versatile control options.
• Local video loopback on the transmitter provides on-site monitoring, useful for managing the system at the equipment rack while working remotely.
• Durable metal enclosure withstands industrial environments, broadcast trucks, and command centers.
• TAA compliance ensures suitability for government procurement and trusted sourcing requirements.

Key specs

• Video resolution: 3840 x 2160 (4K) at 30 Hz
• Maximum extension distance: 33,000 feet (10 km) over single mode fiber
• USB support: USB 2.0
• Audio: Bi-directional audio pass-through
• Serial interface: RS-232 channel
• Enclosure: Metal chassis
• Compliance: TAA compliant

Connectivity and compatibility

This extender kit connects directly to a host computer’s HDMI output and USB ports, extending these signals over fiber to a remote console. It supports a wide range of USB peripherals including keyboards, mice, and other USB 2.0 devices. The RS-232 channel adds compatibility with serial devices such as touchscreens, while the bi-directional audio channel supports headsets or speakers for communication needs. The fiber optic connection ensures immunity to electromagnetic interference and provides secure signal transmission, making it suitable for sensitive or industrial environments.

Installation and setup

Setting up the KVXLCHF-100 is straightforward. The transmitter unit connects to the host computer’s HDMI, USB, audio, and serial ports, while the receiver unit connects to the remote workstation’s peripherals and monitor. A single strand of single mode fiber optic cable links the two units, simplifying cabling and reducing clutter. The local video loopback on the transmitter allows monitoring of the video signal at the host location, which is helpful for troubleshooting or managing the system without needing to be at the remote console.

Ideal uses and environments

This KVM extender kit is well suited for applications where workstations need to be located far from servers or control systems, such as secure server rooms, production lines, broadcast trucks, or command centers. It works well in environments that require immunity to electromagnetic interference and secure signal transmission. The durable metal enclosure and TAA compliance make it a strong choice for industrial, government, and professional settings where reliability and trusted sourcing are important.

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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