Overview

The CalDigit Thunderbolt 4/USB 4 Cable (0.8m, model TB4-P08B-540) is an Intel-certified USB-C cable built for maximum performance. It delivers 40Gb/s data transfer and 100W Power Delivery, making it a single-cable solution for charging a laptop, connecting an 8K display, or linking a high-speed external SSD. At 0.8 meters, it’s short enough to keep desk clutter minimal yet long enough for most dock-to-laptop arrangements. This cable uses USB-C connectors on both ends and is backward compatible with Thunderbolt 3, USB4, USB 3.2/3.1/3.0, and USB 2.0. It works with a wide range of devices, including 2016 and later MacBook Pro, 2017 and later iMac/iMac Pro, 2020 and later MacBook Air, Windows Thunderbolt 3/4 notebooks, Thunderbolt docking stations, and USB-C monitors up to 8K.
Connector: USB Type-C male to USB Type-C male Supported standards: Thunderbolt 4, Thunderbolt 3, USB4, USB 3.2 Gen 2×2 (20Gb/s), USB 3.2 Gen 2 (10Gb/s), USB 3.2 Gen 1 (5Gb/s), USB 2.0 Compatible devices: MacBook Pro (2016+), iMac (2017+), iMac Pro (2017+), MacBook Air (2020+), Windows Thunderbolt 3/4 PCs, Thunderbolt docks, high-speed storage, USB-C monitors, mobile batteries, charging adapters Display support: up to 8K at 60Hz via Thunderbolt or USB-C (depending on host) * Power delivery: up to 100W (20V, 5A) for notebook charging

Product Info

Released in 2021, the CalDigit Thunderbolt 4/USB 4 Cable carries Intel’s official certification, ensuring full 40Gb/s bandwidth, 100W PD, and 8K display support. It retails for around $29.99 in the US and ¥3,299 in Japan (). The cable comes with a 2-year manufacturer warranty. Accessories: none (cable only). In the market, it sits at the high end, appealing to professionals and enthusiasts who need guaranteed performance and certification over generic alternatives.
Docking station users: The 0.8m length is ideal for connecting a laptop to a Thunderbolt dock on a desk without excess cable looping. Full 40Gb/s ensures no bottleneck when using multiple peripherals or external GPUs. MacBook Pro/Air owners: 100W PD can charge even the 16-inch MacBook Pro at full speed. The cable’s certification guarantees reliable power delivery and data integrity for creative workflows like video editing or 3D rendering. * Future-proof buyers: If you have or plan to get USB4 or Thunderbolt 4 devices, this cable supports the maximum 40Gb/s transfer rate while remaining backward compatible, so it works with older USB-C gear as well. Ideal for regular travelers who want one cable for both charging and data.

Product Disclosure (Amazon)

  • Manufacturer: CalDigit
  • ASIN: B08QL2R7Z3
  • Note: This article covers a manufacturer-made product based on Amazon listing details.