USB Specifications and Connectors
Understand more about USB specifications, connectors and data transfer speed.
Learn more about the different types of USB connections.
USB Type A (2.0 and 3.2)
USB Type-C (USB C)
USB Standards & Specifications
|Standard||Also known as||Max data transfer speed||Connector types||Max cable length||Max power|
|USB 2.0||Hi-Speed USB||480Mbps||
|USB 3.2 Gen 1||SuperSpeed USB, USB 3.1 Gen 1, USB 3.0||5Gbps||
|USB 3.2 Gen 2||SuperSpeed USB, USB 3.1 Gen 2, USB 3.1||10Gbps||
|USB 3.2 Gen 2x2||SuperSpeed USB, USB 3.2||10Gbps||
|USB 4||TBC||Up to 40Gbps||
Standard large rectangular USB connectors are known as Type-A connectors. They are available in white for USB 2.0 and blue for USB 3.2.
There are different versions of USB connectors, including Mini and Micro.
The USB-C port puts everything you need in a port all in one place.
It delivers SuperSpeed data transfer (up to 5 Gbps), and video output in a reversible design that’s one-third the size of a traditional USB 3 port, giving you the flexibility to easily connect your favourite devices.
The Type-C connector can be plugged in either way round and is compatible with both USB 2 and USB 3 devices. It is also compatible with the USB Power Delivery (PD) specification and can be used to charge mobile devices including laptops and Chromebooks.
What about Thunderbolt?
Thunderbolt 2 and Thunderbolt 3 do not share a common connector type. This not only causes confusion but can also add cost to a solution should TB2-TB3 adaptors be required.
Thunderbolt 2 was used extensively on older Apple MacBook computers, but Thunderbolt 3 is the latest standard.
Thunderbolt 3 uses a USB Type-C connector and is now common on modern computers.
- The two Thunderbolt 2 ports feature dual 20Gbps channels for data transfer.
- That’s up to four times faster than USB 3.2 (Gen 1).
- The two Thunderbolt 2 ports feature dual 32-Gbps channels available for data transfer (8Gbps for video).
- Two times faster than Thunderbolt 2
- Eight times faster than USB 3.2
- That’s up to four times faster than USB 3.2 (Gen 1)
- 62 times faster than USB 2.0.
Data Transfer speed.
USB transfer speed makes a hug difference to how fast you can transfer data. See the helpful chart below and watch the video to see how Thunderbolt takes data transfer to the next level.
What is the longest USb cable you can use?
When you buy a professional USB hub you naturally want to know what your cable options are, you may be fine with a nice short cable to sit the USB hub on your desk, or you might need it several feet/meters away to fit in with your workplace.
In this post we’ll be covering the options you have to make sure you can still data transfer (sync) at the fastest speed, but also use the length of cable that suits your use case scenario.