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Short black Thunderbolt cable with USB-C connectors, 0.3 m

BFKK

BFKK Thunderbolt cable 0.3 m 40 Gbps 240 W 8K 60 Hz

SKU CH-7S0J-TJ584

A 0.3 m Thunderbolt cable delivering 40 Gbps data, 240 W charging and 8K 60 Hz video

Length 1 ft.

  • 40 Gbps data speed for rapid file transfers
  • 240 W power delivery charges compatible devices quickly
  • 8K at 60 Hz or dual 4K at 60 Hz video output
  • Thunderbolt 4 and 3 compatibility across Mac, PC and mobile
  • USB-IF certified with E-Marker chip for safe operation

What this cable does

The BFKK Thunderbolt cable is a short 0.3 metre link for Thunderbolt 4 and USB 4 devices. It serves laptop owners, dock users and anyone connecting an SSD, eGPU or monitor to a Thunderbolt 3 or 4 port. Buyers who need a longer run or a different connector type should look elsewhere.

The deciding specification

It carries 40 Gbps of data, 240 W of power at 48 V and 5 A, and drives an 8K display at 60 Hz or dual 4K at 60 Hz. The USB-IF certified build includes an E-Marker chip and supports PD 3.1 plus QC 4.0, FCP and AFC fast-charge protocols.

Heat, noise and power draw

The cable itself produces no noise and negligible heat during normal operation. It simply passes up to 240 W from a compatible charger to the attached device without adding measurable thermal load to the setup.

How it compares

Measured against everything we stock in Thunderbolt Cables & Add-In Adapters, at today’s prices. Recalculated every night.

Price $25.99
Pricier than about 63% of the 231 comparable items (median $21.99).

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Specifications

No published specifications for this item yet.

Other versions of this model

5 more in the same range

Questions about this item

What does the 40 Gbps rating deliver when the cable is connected to a host and device that both support it?

It enables up to 40 Gbps data transfer between compatible Thunderbolt hosts and devices, with actual speed depending on the capabilities of the connected equipment.

Which Thunderbolt standard does this cable implement and what practical limit does it set?

The cable is Thunderbolt 4 compatible, supporting the full feature set of that standard including 40 Gbps bandwidth, 240 W charging and 8K 60 Hz video.

What physical length and connector type does this cable have for fitting into a setup?

It is a 0.3 m USB-C to USB-C cable designed to plug directly into Thunderbolt or USB-C ports on laptops, docks, monitors and peripherals.

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