Overview
The Cable Matters USB4 Cable (40Gbps, 3.3ft) is a high-performance USB-C to USB-C cable supporting USB4 and Thunderbolt 4/3 standards. It delivers up to 40Gbps data transfer, 240W USB Power Delivery, and DisplayPort Alt Mode for 4K/8K video output. This cable bridges the gap between your USB4 devices and peripherals, offering future-proof connectivity for demanding workflows.
Key Features
- 40Gbps data rate — Twice as fast as USB 3.2 Gen 2×2, suitable for high-speed SSDs and external GPUs
- 240W Power Delivery — Enables fast charging for high-power notebooks (requires compatible charger)
- DisplayPort Alt Mode — Supports up to 8K@60Hz for external monitors
- 1 meter length — Practical for desktop setups without excessive slack
- Shielded construction — Reduces electromagnetic interference for reliable signal integrity
Compatibility Notes
Works with any USB4 or Thunderbolt 4/3 port on Windows PCs, Macs, Chromebooks, and select Android smartphones/tablets. When connected to a USB-C port that does not support USB4, speeds will fall back to the port's maximum (typically 10Gbps or 20Gbps). For video output, both the source device and monitor must support DisplayPort over USB-C. The cable is backward compatible with USB 3.2, 3.1, and 2.0 devices (at slower speeds).
Ideal Use Cases
- Connecting external USB4 NVMe SSDs for high-speed file transfers (video editing, large datasets)
- Powering and charging a laptop through a single USB-C cable
- Driving a high-resolution display (4K/8K) from a compatible laptop or desktop
- Tethering a Thunderbolt dock or hub to a PC for expanded connectivity
Buying Guide
Always look for USB-IF certification to ensure specification compliance. Uncertified cables may not achieve full 40Gbps or 240W. For longer runs (2m+), consider active USB4 cables (which include signal-boosting electronics), but they are generally thicker and more expensive. If you only need 20Gbps and 100W, a USB 3.2 Gen 2×2 cable may be more cost-effective.