Silkland USB4 Cable 1.2M 40Gbps for Thunderbolt

This USB4 cable from Silkland combines high-speed data transfer, versatile video support and powerful charging in a single 1.2 metre lead, making it a practical choice for connecting laptops, external SSDs, docks and high-resolution displays. It is designed to carry up to 40 Gbps for fast file moves while also delivering up to 240 W of PD3.1 power, so you can charge compatible MacBook Pro models and other USB-C devices while working with large media files or driving a monitor.

Key Points

This cable supports USB4 at 40 Gbps for rapid transfers and is USB-IF certified, according to the manufacturer. It can handle display traffic for up to 8K at 60 Hz with 10-bit colour and HDR, or drive dual 4K@60 Hz screens. The 1.2 metre length matches the longest permitted for this specification, which helps reduce desk clutter while keeping devices within reach. Design choices such as a braided jacket and triple-layer shielding aim to reduce tangling and interference for more reliable signal integrity.

Technical Specifications

• Name: Silkland USB4 Cable for Thunderbolt 4/3
• Data rate: 40 Gbps (approx. 3700 MB/s)
• Length: 1.2 m
• Video: up to 8K@60 Hz with 10-bit colour and HDR, or dual 4K@60 Hz
• Power delivery: up to 240 W PD3.1 (48 V / 5 A)
• Compatibility: USB-C, Thunderbolt 4 and backwards compatible with Thunderbolt 3 and USB 3.2

Advantages

For content creators and professionals who move very large files, the high data throughput greatly reduces waiting times when copying multi-gigabyte projects. The ability to carry display, data and power simultaneously simplifies setups by removing the need for separate power leads or display cables. The cable’s support for extended power range means it can work with newer laptops that demand higher wattage, while remaining compatible with older 100 W chargers.

Usage Recommendations

Connect the cable between a compatible host, such as a MacBook Pro, and a dock, external SSD or monitor to make the most of the combined bandwidth and power. When using high-resolution displays at 8K or dual 4K, ensure the connected devices explicitly support those output modes according to their specifications, as actual performance depends on the capabilities of both the host and the display. Consider using the braided cable in portable setups where durability and reduced tangling are useful, for example carrying a compact SSD and laptop between workspaces.

Note that some advanced charging and video features may depend on the source device and the power adapter. According to the manufacturer, the integrated E-Marker chipset manages safe power delivery and supports common fast charging protocols, but actual charging speed will vary by device and charger. 😊 🔌 📺