Silkland USB4 80Gbps Extension Cable 1.6ft

Whether you are extending your dock setup or adding a little more reach between a laptop and accessories, this Silkland USB4 extension cable helps keep your connections flexible. It is built for high speed USB4 and Thunderbolt 5 or 4 workflows, so you can move data and route video without constantly swapping ports. With a compact 1.6 ft length, it also helps tidy desk layouts while keeping your USB C devices within easy reach.

The essentials

This Silkland cable supports USB4 and USB C 3.2 Gen 2x2 compliant transfers, which the manufacturer lists at up to 80Gbps and around 6200MB/s for fast sending and receiving of files, movies, audio, and video signals. It is designed to be plug and play, so you can connect the extension between your hub, docking station, SSD, or other USB C gear and your computer without complicated setup steps. If you have ever wanted a cleaner workspace, the included cable tie and the compact form factor make it easier to store and manage the connection.

You also get video output support, including single 4K at 540Hz and multi screen modes such as dual 8K or 6K at 60Hz and triple 4K at 144Hz, according to the product information. On the power side, the cable supports up to 240W USB C charging at 48V and 5A, which can help you power compatible devices while still extending the connection. Keep in mind that actual transfer speed and achievable video resolution depend on what your device and hub support, since limits can come from either end.

Key points

You get a USB4 extension designed for both data and charging, built with the goal of staying stable during everyday transfers and hookups. The product information highlights 28AWG tinned copper construction for improved conductivity and minimizing signal loss, which can matter when you are moving video or charging power through the link. The manufacturer also notes an aluminum shell and sturdy tinplate for added durability and connector protection.

When you are setting up a home office or meeting space, a short extension can reduce cable strain and help keep your desk organized 😊. This cable is also described as supporting connections in all directions via the female Type C port, avoiding the need to flip the connector to get it to fit.

There are multiple device categories listed as compatible, including USB C hubs, iPhone 16 and earlier models in the iPhone 16/15 series, iPad Pro or Air or Mini, MacBook, and more USB C accessories. Still, it is important to verify that every piece in your chain supports the resolution or charging level you want, since the best results require matching capabilities across cable, hub, dock, and display or device.

Tech specs

• Data transfer rate: up to 80Gbps
• Transfer speed reference: up to 6200MB/s
• Video output support: single 4K at 540Hz
• Video output support: dual 8K or 6K at 60Hz
• Video output support: triple 4K at 144Hz
• Charging support: up to 240W (48V/5A)

Who it’s for

This extension cable makes sense if you are building a compact Thunderbolt 5 or Thunderbolt 4 compatible setup and want extra reach between your laptop and a hub, dock, monitor, or SSD. It suits people who care about keeping video signals clean and consistent for office meetings or home movie watching, especially when their gear supports high refresh and multi screen output. It is also a good match if you want one connection path that can handle data, video, and fast USB C charging in a single tidy layout.

Worth considering if your current cable length is limiting and you would rather add a short extender than reorganize your entire desk. It might not be a great match if your device or hub caps performance below the advertised transfer rate or if your connected display and adapters do not support the specific resolutions listed by the manufacturer. Always check the maximum transfer speed and charging capability supported by your devices so you can judge what you will actually get in day to day use.