USB has long been one of the most important ways to share and receive data with the computer. USB provides great features and speed with each update. Now the best USB 4 is coming . One of the great features of USB 4 is that it can transfer data up to 40 GB per second. The USB 4 port also includes the Thunderbolt protocol specification. Another feature of USB 4 is that it can transfer data from multiple sources at once.
The display protocol is similar to the USB Type C port. The new USB 4 port is based on the current versions of USB 2.0 and 3.2 architecture, but more features are expected on USB 4, according to the USB Implementer's Forum.
| Specification | Throughput | Prev Name | Tech Name | Marketing Name |
| USB 4 | 40 Gbps | N/A | USB 4.0 | Not Announced |
| USB 3.2 | 20 Gbps | N/A | USB 3.2 Gen 2x2 | SuperSpeed USB 20Gbps |
| USB 3.1 | 10 Gbps | USB 3.1 Gen 2 | USB 3.2 Gen 2 | SuperSpeed USB 10Gbps |
| USB 3.0 | 5 Gbps | USB 3.1 Gen 1 | USB 3.2 Gen 1 | SuperSpeed USB |
The new USB 4 standard will have three main benefits over prior versions of USB.
- 40 Gbps Maximum Speed: By using two-lane cables, some devices will be able to operate at up to 40 Gbps, the same speed as Thunderbolt 3.
- Compatible with Thunderbolt 3 devices: Some, but not necessarily all USB 4 implementations will also work with Thunderbolt 3 devices.
- Better Resource Allocation for Video: If you’re using a USB 4 port to transport both video and data at the same time, the port will allocate bandwidth accordingly. So, if the video only needs 20 percent of the bandwidth to drive your 1080p monitor that’s also a hub, the other 80 percent will be free for transferring files from your external SSD.








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