What is USB-C?
USB-C is a type of connector that is becoming the standard for many devices. It has a small, reversible plug, which means you can insert it either way. USB-C supports fast data transfer, video output, and charging. You’ll find it on smartphones, laptops, tablets, and other gadgets. While the connector looks the same, the technology it supports can vary—ranging from basic USB 2.0 speeds to faster protocols like USB 3.2 or even Thunderbolt.
What is Thunderbolt?
Thunderbolt is a technology developed by Intel and Apple, primarily used for high-speed data transfer and video output. It shares the same physical connector as USB-C but offers significantly faster data transfer rates and more functionality. Thunderbolt can handle multiple types of connections—like displays, external storage devices, and docking stations—all through one cable. It also supports daisy-chaining, where you can connect multiple devices to a single port.
What are the similarities?
USB-C and Thunderbolt share the same connector type, making them physically compatible. Both can transfer data, output video, and provide power to devices, but Thunderbolt offers faster speeds and more advanced features. Despite looking the same, Thunderbolt is a more powerful technology, whereas USB-C is more common and widely used across a broader range of devices.
Comparison table
| Feature | USB-C | Thunderbolt |
| Launched by | USB Implementers Forum (USB-IF) | Intel, in collaboration with Apple |
| Year of launch | 2014 | 2011 |
| Versions | No variants within USB-C. But USB 3.0 has higher versions such as USB 3.1 and USB 3.2. | 4 versions: Thunderbolt 1, Thunderbolt 2, Thunderbolt 3, Thunderbolt 4 |
| Number of pins | 24 | Thunderbolt 1,2: 20 pins |
| Thunderbolt 3,4: 24 pins | ||
| Cable Length | Up to 4m | 3m |
| Data Transfer Speed | 10Gbps | 10Gbps to 40Gbps |
| Charging Speed | 2.5 Watts (if no Power Delivery Protocol) | 15 Watts (if no Power Delivery Protocol) |
| Identification | No distinct identification feature | Thunderbolt logo on the connector and nearby to the port |
| Use | Highly utilized in all the new models of laptops and other devices | As of now, not a frequent presence. Usually used by Apple devices |
| Cost | Reasonable | More expensive |