Which USB version provides a transfer rate of 40 Gbps?

The USB version that provides a transfer rate of 40 Gbps is USB 4.0. This version was designed to enable higher performance and increased efficiency in data transfer and is compatible with Thunderbolt 3, which also supports the same high transfer rates. USB 4.0 incorporates technology that allows for data speeds up to 40 Gbps, significantly surpassing previous versions.

Understanding the context of this development is crucial. USB 3.0, for example, offers speeds up to 5 Gbps, while USB 3.1 Gen 2 improves upon this with speeds of up to 10 Gbps. USB 2.0 is significantly slower, with its maximum rate capped at 480 Mbps. This distinction highlights the substantial advancements introduced with USB 4.0, making it the clear choice for achieving the stated transfer rate.