Black Box VA-USBC31-HDR4K-003

Overview

The Black Box VA-USBC31-HDR4K-003 is a 3-foot USB-C to HDMI adapter cable designed to connect USB-C or Thunderbolt 3 devices to HDMI displays, delivering 4K resolution at 60 hertz with HDR support. It uses DisplayPort 1.2 Alt Mode to transmit both video and audio without requiring drivers or additional adapters, making it a simple and reliable solution for extending or mirroring your screen.

This cable is ideal for office setups, classrooms, and home entertainment, allowing you to connect laptops, tablets, or other compatible devices to projectors, monitors, or TVs. Its three-foot length provides a neat connection without excess cable clutter, and the flexible yet durable jacket withstands frequent travel and tight bends.

Key features

• Supports 4K UHD video at 60 hertz with HDR for vivid colors and sharp image detail
• Combines audio and video transmission in a single USB-C to HDMI cable for convenience
• Works through DisplayPort 1.2 Alt Mode, eliminating the need for drivers or software installation
• Fully compatible with Thunderbolt 3 ports, ensuring broad device support
• Compact 3-foot length keeps your workspace tidy and is easy to carry during travel
• Flexible cable jacket and integrated conversion circuitry remove the need for a bulky dongle

Key specs

• Video resolution: 4K UHD (3840 x 2160) at 60 Hz
• HDR support: Yes
• Interface: USB-C (source) to HDMI (display)
• DisplayPort version: 1.2 Alt Mode
• Cable length: 3 feet (approximately 0.9 meters)
• Compatibility: USB-C ports with DisplayPort Alt Mode, Thunderbolt 3 ports

Connectivity and compatibility

This adapter cable connects directly from a USB-C or Thunderbolt 3 port on your device to an HDMI input on a monitor, projector, or TV. It supports video and audio transmission over a single cable, simplifying your setup without extra adapters or drivers. Compatibility extends to most modern laptops, tablets, and other devices that output video via USB-C with DisplayPort Alt Mode.

• USB-C connector plugs into the source device
• HDMI connector attaches to the display device
• Supports audio pass-through alongside video

Ideal uses and environments

This cable fits well in professional and personal environments where a clean, reliable connection is needed between USB-C devices and HDMI displays. It works well for presentations in conference rooms, extending desktop workspaces with additional monitors, or streaming high-quality video content to TVs in living rooms. Its durable design and manageable length make it a practical choice for users who travel or move between different setups frequently.

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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