Thunderbolt 3. The most powerful and versatile port ever.

Thunderbolt 3 offers a connection with state-of-the-art speed and versatility. Delivering twice the bandwidth of Thunderbolt 2, it consolidates data transfer, video output and charging in a single, compact connector. And with the integration of USB-C, convenience is added to the speed of Thunderbolt to create a truly universal port.

Up to 40 Gbps
data transfer

Supports up to
four 4K displays or up
to two 6K displays1

Charge and provide power from any port

Connect new and
existing devices

Incredibly fast data transfer. Now even faster.

Transferring data at speeds of up to 40 Gbps — two times faster than Thunderbolt 2 and eight times faster than USB 3 — Thunderbolt 3 delivers the fastest connection to any dock, display or device. You can also daisy-chain up to six Thunderbolt devices through a single port without needing a hub or a switch. So connecting a storage device to your computer, then a display to your storage device, works as it’s meant to — with powerful throughput.2

Less than one minute to copy 14 hours of HD video

Less than one minute to copy 25,000 photos

Less than one minute to copy 10,000 songs

40 Gbps
Thunderbolt 3
20 Gbps
Thunderbolt 2
10 Gbps
USB 3.1
5 Gbps

6K resolution. 20.4 million pixels.
One remarkable cable.

Thunderbolt 3 provides twice the display bandwidth of Thunderbolt 2, enabling your Mac to support up to four 4K displays or up to two 6K displays.1 Which means that with two Thunderbolt controllers in the 16-inch MacBook Pro, you can send graphics to dual 6K displays for the perfect high‑resolution photo and video editing setup. Thunderbolt 3 connects to DisplayPort displays and monitors with a cable, while supporting HDMI and VGA displays with the use of an adapter.

1080p HD

More power to you. And all your devices.

With Thunderbolt 3, a single USB-C port can deliver power in both directions. So a port can charge a device or, alternatively, be charged by one. And it’s capable of delivering up to 100 watts of power, so a single cable can be used to connect to a dock or display, and charge your MacBook Pro or MacBook Air simultaneously.

Up to 100W
of power delivery

Up to 15W for
bus-powered devices

Up to 100W of power delivery

Up to 15W for bus-powered devices

Compatible with your existing devices.

Thunderbolt 3 with USB-C technology is a truly universal connection. With the help of an adapter or cable, you can connect just about any of your devices, including your existing Thunderbolt 2 devices.


Plug into displays using HDMI, VGA, DVI, DisplayPort or Thunderbolt.

iOS Devices

Connect to iOS devices like iPhone and iPad.


Use peripherals compatible with USB‑A, SD, Micro‑B and Mini‑B.


Connect to storage devices like Thunderbolt 2 and USB external hard drives.

Thunderbolt 3 Compatibility

The Thunderbolt 3 (USB-C) ports on MacBook Pro, MacBook Air, iMac Pro, iMac and Mac mini are fully compatible with your existing devices and displays. Use the chart below to find out which adapter or cable you’ll need to connect to the ports on all your favourite devices.

Shop adapters

Your device port

Connect to your Thunderbolt 3–enabled Mac using

Thunderbolt 2

Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter


No adapter required


Apple USB-C to USB Adapter


Apple USB-C to Lightning Cable


USB-C to Micro-B cable


USB-C to Mini-B cable


USB-C to Ethernet adapter


Apple USB-C Digital AV Multiport Adapter or
USB-C to HDMI adapter


USB-C to DisplayPort cable or adapter


Apple USB-C VGA Multiport Adapter or
USB-C to VGA adapter


USB-C to SD Card Reader


USB-C to DVI adapter

Get the accessories, cables and adapters you need.

Equipped with Thunderbolt 3, your Mac is ready to connect to a broad ecosystem of devices.

Shop all Mac accessories