Silkland S3415 USB4 Cable, 10 ft, 80Gbps, 240W, Dual 8K Display Support

Choosing a cable for a high-bandwidth display setup is different from choosing one mainly for charging. The Silkland S3415 brings data transfer, video and power delivery together in a 10 ft USB-C cable, with support for up to 80Gbps data transfer, 120Gbps display bandwidth and 240W charging. That makes it useful for connecting a laptop to compatible monitors or a dock while keeping a single cable in the setup.

Its braided nylon exterior and aluminum shell add a durable, practical finish for a desk or home office.

How it fits

This USB4 Version 2.0 cable is designed for USB-C equipment, including compatible Thunderbolt 5, Thunderbolt 4, Thunderbolt 3, USB4 and USB 3.2 devices. The listed uses include laptops, MacBook M4 Pro and M4 Max, SSDs, iPhone 17 and 16, iPad, USB-C monitors, docking stations and GaN chargers. The 10 ft length gives you room to connect devices arranged farther apart on a desk or workstation.

If a setup needs only basic charging, a charging-focused cable may be all that is required. The S3415 is aimed at combining charging with high-speed data and display connections, which can be useful when a laptop, external storage and monitor share the same USB-C workflow. Its male-to-male connectors link USB-C ports directly.

Where it shines

For a workstation that moves files between a computer and an external SSD while also connecting to displays, the cable’s bidirectional 80Gbps data rate and 120Gbps unidirectional display bandwidth address different parts of the setup. Supported display configurations include dual 8K at 60Hz, triple 4K at 144Hz, or a single 4K at 540Hz. The equipment connected to the cable needs to support the selected configuration.

Power delivery is another practical part of its design. The cable supports PD 3.1 charging up to 240W, with an E-Marker chip for current regulation and protection against over-voltage, over-current and short circuits. This can make it a convenient connection for compatible high-power laptops and workstations, as well as lower-wattage devices.

The 48-strand braided nylon covering, aluminum shell and triple shielding are designed for a sturdy cable build and signal integrity. Buyers also praise the woven feel, construction and speed, reports about compatibility are mixed, so matching the cable’s USB-C standards and intended display or charging setup to the connected devices is important.

Tech specs

• Type: USB4 Version 2.0, USB-C male-to-male cable
• Length: 10 ft / 3 m
• Data transfer rate: Up to 80Gbps, bidirectional
• Display bandwidth: Up to 120Gbps, unidirectional
• Display support: Dual 8K at 60Hz, triple 4K at 144Hz, single 4K at 540Hz
• Power: Up to 240W, PD 3.1, 48V/5A
• Materials: Braided nylon and aluminum shell
• Color: Grey
• Model: S3415

Questions before you buy

Which devices can I connect? The cable is listed for compatible Thunderbolt 5, 4 and 3, USB4 and USB 3.2 devices, including laptops, SSDs, monitors, docks, iPad and iPhone 17 or 16. Check that the connected device has a compatible USB-C port and supports the function you want to use.

Can it charge a laptop and transfer data? Yes. It supports charging up to 240W and data transfer up to 80Gbps. The connected charger and device determine the power available in a particular setup.

What display setups are supported? The listed options include dual 8K at 60Hz, triple 4K at 144Hz or one 4K display at 540Hz. Display support depends on the connected computer and monitors.

When it makes sense

The Silkland S3415 suits a desk setup where one cable needs to serve more than one role: connecting USB-C equipment for data, displays and charging. Its 10 ft reach, high display bandwidth and 240W power support make it especially relevant for compatible laptop-and-monitor workstations, while the braided construction is a useful everyday feature for a cable that will be handled regularly.