Compare how different cable, connector, and port protocols can power your workflow, and find compatible storage devices to help.
Thunderbolt and USB protocol technology transfer data, display video, play back audio, and charge devices. What’s different between them is how much of each they support, and what kind of accessories they let you connect while doing it.
USB-C is the shape of the connector at the end of a cable, as well as the kind of port you’ll connect that cable to. However, it’s not a specific protocol itself. Thunderbolt 4, Thunderbolt 3, USB4, and USB 3.2 protocols all use USB Type C cables and ports. Only some cables and ports are certified for Thunderbolt.
Thunderbolt is generally the fastest, most versatile technology on the market capable of reaching top speeds, connecting multiple high-res monitors at once, daisy-chaining storage devices, and more — all through a single port.
USB — or Universal Serial Bus — is the most common protocol for transferring data to and from storage devices, connecting accessories such as your mouse and keyboard, and keeping your day-to-day tech charged.
Still have questions? Head to our FAQs.
Master connected workflows by learning more about USB vs. Thunderbolt.
Thunderbolt 41 | Thunderbolt 3 | USB4 | USB 3.2 | |
---|---|---|---|---|
Data Transfer | 40 Gbps | 40 Gbps | 20 Gbps/40 Gbps | 5-20 Gbps |
Video | Two 4K Monitors One 8K Monitor |
Two 4K Monitors One 5K Monitor |
Two 4K Monitors One 8K Monitor |
One 4K Monitor |
Power/Charging | Cable up to 100W Port minimum 15W |
Cable up to 100W Port minimum 15W |
Cable up to 100W Port minimum 7.5W |
Cable up to 100W Port minimum 4.5W |
Daisy-Chaining | Yes (up to 6 devices) | Yes (up to 6 devices) | No | No |
Passive Cable Length2 | 2m | 0.8m | 0.8m | 1m |
Mandatory Certification | Yes | Yes | No | No |
Backwards Compatibility | Full | ≥1m = 480Mbps (USB) | Full | Full |
Connector | USB-C | USB-C |
USB-C | USB-C, USB-A |
No, both Thunderbolt 4 and Thunderbolt 3 are great options for your data storage workflow. Each generation supports speeds of up to 40 Gbps, so they’re equally fast.
Yes, using Thunderbolt 3 for data transfer to and from your storage devices will not put you at any disadvantage compared to Thunderbolt 4.
Thunderbolt 4 optimizes the docking experience for peripherals and allows you to support additional, higher-res video displays. If that’s a priority for you, Thunderbolt 4 is a great option — and Thunderbolt 3 devices will be fully compatible with your Thunderbolt 4 system, so long as they’re downstream.