Silkland USB 4 for Thunderbolt 4 Cable 4FT, 40Gbps Data Sync, 8K/6K@60Hz, 240W Charging [USB-IF Certified],Braided USB C to USB C Data Cable Compatible for MacBook, iPhone 17, Mac mini, SSD, Docking

cable is Reliable and fast. very much worth the money. Data transfer speeds are perfect. 0 compatibility issues. I would highly recommend this product.

This cable was the perfect length and replacement for my Asus ROG charging and data transfer cable. If you are looking to replace the cable for your gaming device, I found this to be compatible with at least the Asus ROG Ally Z1. The cable is braded and feels very durable and so far has been charging my ROG quickly and without any issues.

The Silkland USB4 cable is an absolute beast of a cable—fast, reliable, and built to last. I’m using it with a Thunderbolt 4 dock and my MacBook Pro, and it delivers on every promise: 40Gbps data transfer, 240W power delivery, and crisp 8K video output. Transfer speeds are lightning quick—I can move large project files and media in seconds. Video performance is flawless, with smooth 8K and 6K output at 60Hz and no flicker or dropouts. On the charging side, the 240W PD support means my laptop and other high-power devices charge quickly and efficiently. The build quality is excellent—the cable feels durable with reinforced ends, and the connectors fit snugly with no wiggle. At 4FT, it’s the perfect length: long enough for flexible setups without being messy. This is the kind of cable you buy once and trust for all your high-end devices—Thunderbolt docks, external SSDs, monitors, and laptops. If you want pro-grade performance in a sturdy cable, the Silkland USB4 is a fantastic choice.

Works as intended to transfer photos from my cell phone to my laptop. Great quality.

This has been an extremely durable cable and has a perfect fit with my device. I would not hesitate to buy one of these. This is my new replacement cable

This 1.2m cable is one of the longest 40Gbps 240W passive USB-IF certified cables on the market. At the time of writing it is priced at about $20. This cable is USB-IF certified, meaning at has been tested by a USB Forum approved test facility and adheres to all the required performance characteristics of a 40Gbps 240W cable. Far from all cables are qualified this way. This cable also correctly identifies itself as a Thunderbolt cable and will correctly function with all your Thunderbolt 3/4 devices. It will also function properly as a video cable (carries DisplayPort Alt Mode data). As an added bonus, since this is a passive cable (no active circuitry to re-transmit high speed signals) it is expected to be fully compatible with future 80Gbps and 120Gbps USB4 modes! As for construction, the outer material is a cloth braid and has an adequate amount of flexibility for a 40Gbps cable. The cable insertion force is on the lower side but the retention force feels high enough so the connection is secure. Cable Vbus+GND resistance is measured to be about 125mΩ - plenty of margin left from the 150mΩ specification limit for 5A (240W) cables! My issue: the emarker contains some inaccurate information (but this should not affect performance). - The USB Vendor ID field is set to 0x2E99 (11929 decimal) which is Hynetek's VID, but it should be 0x3678 (13944 decimal) for Silkland's VID. - The Cert Stat VDO field is set to 0x23A5 (9125 decimal) which corresponds to the Test ID for the Hynetek HUSB332D emarker chip, which is the emarker used in this cable. It should be set to the XID assigned by the USB-IF to this cable: 0x281C (10268 decimal). - The Product VDO field is blank. This could have allowed Silkland to program a unique identifying value and release number to this cable to track future cables that potentially address the above issues. These issues shouldn't have made it past the certification process or Silkland's engineering department in my opinion. I have contacted Silkland directly, and support claims they will update the cable programming in future batches but they are unable to send me a sample as evidence. Also, note that only the 1m and 1.2m versions of this cable are USB-IF certified.

does what it says as far as I can tell. Cant test the transfer speed but it works for my monitor and that is what I needed.

great product works as intended

Très bon câble, il fonctionne avec ma station de travail équipée de deux écrans. Une fois connecté, tout fonctionne parfaitement.

正直、速度はそこまで出なくても仕方ないかと思って購入。自分の環境がThunderbolt 3環境なので、4が提唱する速度までは出ないが、3としては十分なデータ転送速度が確認された。3mあればPCを置いたデスクから離れたサーバ等を設置している別場所との接続も可能であり、仕事環境のレイアウト等に役立つ。

Zeer goede kwalitatieve kabel ziet er zeer duurzaam uit.

He adquirido este cable de Silkland buscando una solución "todo en uno" que no se quede obsoleta a corto plazo, y los resultados confirman que es una pieza de ingeniería excelente. Aquí detallo los puntos clave para quien esté dudando: 1. Construcción y calidad: Lo primero que destaca es su robustez. Tiene un trenzado de nylon de alta densidad que se siente muy resistente al tacto pero lo suficientemente flexible para su longitud (30 cm). Los conectores encajan con firmeza quirúrgica, algo vital en cables de alta velocidad para evitar desconexiones accidentales. El blindaje es notablemente más grueso que en cables estándar, lo que previene interferencias en la señal de vídeo. 2. Rendimiento técnico real: Este cable no es un simple USB-C. Se sitúa en la parte más alta de la jerarquía técnica actual: Velocidad: Certificado para 40 Gbps, lo que lo hace ideal para discos SSD externos de alto rendimiento o tarjetas gráficas externas (eGPU). Potencia: Soporta 240W (PD 3.1). Esto es muy superior a los 60W o 100W habituales; puede cargar desde un smartphone hasta los portátiles más exigentes del mercado sin despeinarse. Vídeo: Maneja resoluciones 8K a 60Hz o 4K a 144Hz con una fluidez total, perfecto para monitores profesionales. 3. ¿Para qué es útil? Debido a su longitud de 30 cm, es el compañero perfecto para: Evitar el desorden de cables al conectar un Docking Station al portátil. Conectar discos externos (PSSD) manteniendo la máxima tasa de transferencia. Uso en el coche con Android Auto o CarPlay, donde un cable largo suele molestar. 4. Situación en la jerarquía: Es importante que el comprador sepa que este cable es compatible con todo (Thunderbolt 3/4, USB4, USB 3.2), pero está un escalón por encima de la mayoría. Mientras que un cable USB-C estándar suele dar 5 o 10 Gbps, este ofrece 40 Gbps. Solo el reciente (y mucho más caro) Thunderbolt 5 lo supera en velocidad, pero para el ecosistema actual de 2026, este es el estándar de oro. Conclusión: Si buscas un cable para cargar el móvil, este es demasiado. Si buscas un cable para centralizar datos, vídeo de alta definición y la máxima potencia de carga en un solo hilo indestructible, es una compra maestra. Muy recomendable.

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