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Thunderbolt 3 cable, USB C connectors, 2.6 ft, black

Plugable Technologies

Plugable Technologies TBT3-40G80CM 40Gbps 0.8m usb cable

SKU CH-QGT1-ZWYK1 MPN TBT3-40G80CM

A 0.8 m Thunderbolt 3 cable delivering 40 Gbps data, 100 W charging and dual 4K 60 Hz video

  • Connection typeUSB C to USB C
  • Cable length2.62 ft (0.8m)
  • 40 Gbps Thunderbolt 3 speed moves large files quickly
  • 100 W power delivery charges laptops and peripherals
  • 8 m passive cable keeps desk tidy
  • Dual 4K 60 Hz or single 5K 60 Hz video support
  • Daisy-chain up to six Thunderbolt devices

Thunderbolt 3 40Gbps cable

This 0.8 metre Thunderbolt 3 cable delivers 40Gbps data transfer between certified hosts and devices. It supports up to 100W Power Delivery at 20V and 5A for charging laptops and powering peripherals. The USB-C connectors are compatible with Thunderbolt 3 and 4 ports as well as USB 3.1 Gen 2 devices.

Passive length and speed limits

At 0.8 metres the cable remains passive while sustaining the full 40Gbps Thunderbolt rate. Longer passive cables drop to 20Gbps, so this length is the practical maximum for peak throughput without active electronics. USB 3.1 Gen 2 connections operate at 10Gbps over the same cable.

Upgrades standard USB-C cables

It replaces basic USB-C cables that only reach 5Gbps or 10Gbps and cannot drive dual 4K 60Hz or single 5K 60Hz displays. The jump is worth it when you need Thunderbolt docking, eGPU enclosures or daisy-chaining up to six devices. It will not work with Quick Charge 3.0 or non-compliant proprietary charging.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $27.99
Pricier than about 90% of the 15,227 comparable items (median $14.99).

Specifications

Ports & slots
Connection typeUSB C to USB C
Thunderbolt 3 supportYes
Size & build
Cable length2.62 ft (0.8m)
Shipping weight0.05 kg
Package size221 × 119 × 15 mm

Questions about this item

Should I choose the 0.8 m length or a longer cable for my setup?

The 0.8 m passive length delivers the full 40 Gbps Thunderbolt 3 rate; longer passive cables drop to 20 Gbps, so pick this length when you need maximum speed.

What does the 40 Gbps rating mean when I plug this into my laptop and dock?

You get up to 40 Gbps between Thunderbolt 3 or 4 hosts, 10 Gbps on USB 3.1 Gen 2 ports, plus support for dual 4K 60 Hz or single 5K 60 Hz displays.

Does the USB-C connector limit me to USB speeds or can it carry Thunderbolt and video?

The USB-C connector carries Thunderbolt 3 at 40 Gbps, USB 3.1 Gen 2 at 10 Gbps, DisplayPort Alt Mode for video, and up to 100 W Power Delivery.

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