Price: $19.99 - $16.99
(as of Aug 13, 2026 16:08:43 UTC – Details)
Silkland USB 4 Cable 40Gbps, 240W PD3.1, 8K HDR, 4FT
Upgrade your charging, data transfer, and display setup with the Silkland USB 4 Cable, engineered for high-speed performance and broad compatibility. This 4FT USB 4 Cable supports data transfer speeds of up to 40Gbps, USB Power Delivery up to 240W, and high-resolution video output up to 8K. It is an excellent choice for MacBook, iPad, iPhone, SSDs, docking stations, monitors, and other USB-C devices.
【Up to 40Gbps High-Speed Data Transfer】
The USB 4 Cable delivers up to 40Gbps data transfer, providing speeds up to four times faster than many USB 3.2 cables. Large files can be transferred quickly, making it useful for external SSDs, video projects, photography files, backups, and other demanding workloads. Plug-and-play operation means no additional drivers are required. Actual transfer speeds depend on the connected device, port, storage drive, and operating system.
【240W USB PD3.1 Fast Charging】
This USB 4 Cable supports up to 240W (48V/5A) Power Delivery when used with compatible chargers and devices. It also supports lower power levels including 100W, 140W, and 180W through Extended Power Range technology. The integrated E-Marker chip helps manage power delivery for reliable and stable charging. Support for PD 3.1, QC 4.0, FCP, and AFC technologies makes this cable suitable for modern high-power USB-C charging setups.
【8K HDR Video Support】
Connect compatible laptops, desktops, docks, and monitors with support for high-resolution video output. The cable can support a single 8K@60Hz, 5K@60Hz, or 4K@144Hz display, as well as dual 4K@60Hz displays depending on the connected hardware. HDR and 10-bit color support can provide detailed images and richer color for compatible devices. MST daisy-chain configurations are also supported on compatible systems.
【Wide Thunderbolt and USB-C Compatibility】
The USB 4 Cable is designed for modern USB-C devices and supports Thunderbolt 4 functionality while maintaining backward compatibility with Thunderbolt 3, USB 3.2 Gen 2, USB 3.2 Gen 2×2, and USB 2.0 devices. It can be used with MacBook, Mac Studio, Mac Mini, Apple Studio Display, Surface devices, iPad Pro, iPhone 17, iPhone 16, docking stations, external SSDs, power banks, and GaN chargers. For docking stations, a cable length under 5FT is recommended for stable performance.
【Durable Braided Construction】
Built for everyday use, the Silkland USB 4 Cable features an aluminum-alloy shell designed to assist with heat dissipation and protect internal components. The 48-strand braided exterior provides additional durability and helps resist tangling. EMI-resistant tinplate, 28 AWG OFC conductors, and stainless-steel connectors are designed to maintain signal quality and provide dependable connections over extended use.
【USB-IF Certified Quality】
This 4FT USB 4 Cable is USB-IF certified, with certification information verified under TID:11328. Certification helps provide confidence that the cable has been tested according to applicable USB specifications. The 4FT length provides a practical balance between desktop flexibility and stable high-speed connections.
【24-Month Customer Support】
Silkland provides 24 months of customer support for this USB 4 Cable. If you experience an issue with the product, the support team is available to help resolve concerns and provide assistance.
Key Features:
• USB 4 Cable with up to 40Gbps data transfer
• Up to 240W PD3.1 fast charging
• 8K@60Hz, 5K@60Hz and 4K@144Hz video support
• Dual 4K@60Hz display support on compatible devices
• Thunderbolt 4 and Thunderbolt 3 compatibility
• Backward compatible with USB 3.2 and USB 2.0
• USB-IF certified, TID:11328
• E-Marker chip for power management
• 4FT length for convenient desktop and workstation use
• 48-strand braided construction
• Aluminum-alloy housing and stainless-steel connectors
• Compatible with laptops, Macs, tablets, iPhones, SSDs, docks, monitors, and chargers
Frequently Asked Questions
- What is the maximum data transfer speed of this USB 4 Cable?
The USB 4 Cable supports data transfer speeds of up to 40Gbps when connected to compatible USB4 hardware. Actual speeds depend on the connected devices, ports, storage drives, and other system limitations.
- Can this USB 4 Cable support 240W charging?
Yes. The cable supports up to 240W PD3.1 charging when paired with compatible chargers and devices. The E-Marker chip helps support proper power negotiation and management.
- Does this USB 4 Cable support 8K displays?
Yes. It supports up to 8K@60Hz on compatible devices and displays. It can also support 5K@60Hz, 4K@144Hz, and dual 4K@60Hz configurations depending on the host device, graphics hardware, monitor, and docking setup.
- Is the cable compatible with Thunderbolt 4?
Yes. This USB 4 Cable supports Thunderbolt 4 functionality and is backward compatible with Thunderbolt 3 and various USB-C standards.
- What devices can I use with this USB 4 Cable?
The cable can be used with compatible MacBook, Mac Studio, Mac Mini, iPad Pro, iPhone 17, iPhone 16, Surface devices, external SSDs, docking stations, monitors, power banks, GaN chargers, and other USB-C devices.
Jagroop Singh is a seasoned tech journalist, digital content strategist, and niche publisher specializing in breaking down complex technical frameworks and emerging digital media trends into actionable, consumer-friendly insights.