Silkland USB4 Cable for Thunderbolt 4/3 Cable USB-IF Certified 1.2M 40Gbps, USB-C Display/Video/Monitor Cable [8K/6K/5K@60Hz 4K@144Hz], 240W PD3.1 for MacBook Pro, PSSD, Display, Docking, Monitor

The Silkland USB4 Cable (1.2m) is a well-built, high-performance cable designed for users who need reliable speed, power delivery, and display support in a single USB-C cable. Pros: • Full 40Gbps bandwidth: Delivers USB4/Thunderbolt 4–level performance, making it ideal for fast external SSDs, docks, and high-speed data transfers. • Thunderbolt 4/3 compatible: Works seamlessly with Thunderbolt laptops, monitors, hubs, and eGPUs. • USB-IF certified: Certification adds confidence in quality, safety, and consistent performance across devices. • Display support: Handles USB-C DisplayPort output smoothly (great for 4K monitors and professional setups). • Solid build quality: The cable feels durable, with sturdy connectors and good strain relief. The 1.2m length is practical for desk use without signal loss. Cons: • Premium pricing: Costs more than generic USB-C cables, though justified by certification and performance. • Slightly stiff: Not the most flexible cable, which may matter in tight cable-management setups. Verdict: If you want a dependable, certified USB4 cable that supports 40Gbps data, Thunderbolt 4/3, and USB-C display output, the Silkland USB4 Cable is an excellent choice. It’s ideal for professionals, power users, and anyone running high-end monitors or fast storage who doesn’t want to compromise on reliability.

I used this cable to do a high speed data transfer between my old and new iMac’s. I am pleased to report that it did the job admirably and at a very reasonable price.

Good cable and performance is as advertised. Only downside is that the cable is not very flexible.

These have a very high quality feel about them. They fit the ports well and appear to work well. I can’t attest to the speed rating but everything seem to work as it should. I use it to connect a MacBook Pro M2 to a Caldigit ts4 hub, which connects to the rest of the world. Everything works as it should with no slowdown. Nice good quality lead

High quality

Superb!

Silkland USB4 thunderbolt 4/3 cable. Works well, feels well made and looks good.

Been unimpressed by other so called fast charging/data 'C' to 'C' USB cables. Ok some charged a bit faster, some didn't but the data was always painfully slow. Turns out most USB fast charge cable don't have the extra wires for high speed transfer, but they don't tell you that! So deliberatly searched for those that said 40gbp - and found these and they do. Yippie, transfer speeds magical changed from 35Mbs to over 700Mbs on average. Now probably running up to the limits of something else! Note: You can usually tell which USB cables have the extra data connections they are thicker, plus these are marked with the speed on the plug. Going to have a cull of the slow cables and replace with these! Would I buy again - Yes I have!