Silkland 40Gbps USB 4 Extension Cable for Thunderbolt 4 240W Charging 8K 60Hz USB C Extender 3 3ft

About this item

• 【40Gbps Upgraded Data Transfer】 This USB4 extension cable backs up 3GB files within 1 second. Going beyond the limits of USB-C 3.2 (20G/10G) cables, this USBC extender is built to be future-proof and seamlessly connects the Thunderbolt 4/3, USB4 devices (SSD, docking stations, hubs), enabling maximum transmission speeds up to 40Gbps. Note: actual transfer speed depends on your device. The recommended total cable length between devices is under 10FT for optimal performance.
• 【Single 8K/Dual 4K Video Output】 Provide a single 8K@60Hz / 4K@240Hz or dual 4K@60Hz display support. Whether it's for multi-screen workflow or long-distance home theater, it releases your efficiency and delivers a gorgeous visual feast. NOTE: Make sure your cable/hub/device all support the resolution you want to achieve.
• 【240W High-Power Charging】Never compromise on power or reach. Our Thunderbolt 4 extension cable supports 240W 48V/5A fast charging. Keeping even the most power-hungry laptops charged at full speed. It seamlessly works with your existing 140W, 100W, or lower-wattage USB-C chargers and devices. Extend your setup—it breaks the limitation of short original cables, giving you greater freedom to charge and use your devices from a comfortable distance.
• 【Universal Compatibility for USB-C Devices】The female USB-C port features a reversible design, allowing easy insertion in any orientation—no flipping needed. Female: docking station / USB C hub / USB C cable / SSD / MagSafe and more. Male compatible with Macbook Pro/Air, USB C monitor, iPad Pro/Air/Mini, iPhone 17/16 Series, Galaxy S24/S23, Steam Deck, USB C charger, Switch, iMac Pro, Surface Go, Chromebook Pixel, Dell XPS 13/ 15, Nexus 5X 6P, Lumia 950 950XL and more.
• 【Reliable & Secure】 Our nylon braided usb c male to usb c female cable is triple-protected to withstand 15,000 bending tests. Equipped with an upper Tinplate shielding for extra durability. The interior is made of 86% tinned copper, which is more anti-interference. The built-in E-marker chip supports smart current matching function to protect your device and battery life longer. If you have any questions, feel free to ask us. Any problem will be solved within 18 hours.
• Product description Previous page Next page Previous page Next page 1 40Gbps Data Transfer 2 8K & Dual 4K Output 3 240W Fast Charging Previous page Next page Previous page Next page 1 Full Compatibility 2 No Flipping Required 3 Superior Materials Why can't it reach 40Gbps for me? 1. Please check whether both the connected device and the cable support the specified bandwidth or resolution. 2. For a stable connection, keep the total combined length between the device and the cable within 10 feet. Why can't I achieve 8K/4k resolution with a hub? Please make sure that the hub and cable you are using also support 8K/4K. Why is the connection loose and unstable? 1. First, ensure the USB-C port on your device is clean and free of physical damage. 2. Try flipping the female adapter and reconnecting it 【40Gbps Upgraded Data Transfer】 This USB4 extension cable backs up 3GB files within 1 second. Going beyond the limits of USB-C 3.2 (20G/10G) cables, this USBC extender is built to be future-proof and seamlessly connects the Thunderbolt 4/3, USB4 devices (SSD, docking stations, hubs), enabling maximum transmission speeds up to 40Gbps. Note: actual transfer speed depends on your device. The rec