Tripp Lite U421-003

Overview

The Tripp Lite U421-003 is a USB-C extension cable designed to add three feet of extra reach to your existing USB-C connections. It connects a USB-C male plug to a female port, allowing you to reposition laptops, tablets, phones, or docking stations without rearranging your workspace. Supporting data transfer speeds up to 5 Gbps and power delivery up to 60 watts, this cable ensures fast charging and efficient data movement for compatible devices.

Key features

• Extends USB-C connections by three feet to improve device placement and cable management
• Supports USB 3.2 Gen 1 technology for data transfer speeds up to 5 Gbps, enabling quick file transfers
• Delivers up to 60 watts of power through USB-C Power Delivery for fast charging of laptops, tablets, and phones
• Passes Thunderbolt 3 signals, ensuring compatibility with newer MacBook Pro models, Chromebooks, and Windows systems
• Backward compatible with earlier USB versions to maintain support for printers, external drives, and other peripherals
• Plug-and-play design requires no drivers or setup, making it easy to integrate into existing setups
• Three-foot length provides enough reach to clear obstacles like monitor stands or furniture without excess slack

Key specs

• Data transfer speed: up to 5 Gbps (USB 3.2 Gen 1)
• Power delivery: up to 60 watts (20 volts at 3 amps)
• Cable length: 3 feet
• Connector type: USB-C male to USB-C female
• Thunderbolt 3 signal support: yes

Connectivity and compatibility

This extension cable works seamlessly with a wide range of USB-C and Thunderbolt 3 devices. It fits well in setups involving laptops, tablets, phones, docking stations, and chargers. Its backward compatibility ensures older USB devices remain connected without issues, making it a versatile addition to both modern and legacy equipment.

Ideal uses and environments

The cable is well suited to home offices, conference rooms, and workstations where device placement flexibility is important. It helps users who need to connect laptops to chargers across desks, extend docking station connections, or route cables around furniture without clutter. This makes it a practical choice for professionals and remote workers who value a tidy and efficient workspace.

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.

Learn more

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.

Learn more

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.

Learn more