USB 2.0 is still widely used it delivers both Hi-Speed and Full-Speed mode that operate at 480Mbps and 12Mbps respectively. #DISKMARK SPEEDS PLUS#In real world, we’ve seen first generation USB 3.2 Gen 2×1 (aka SuperSpeed Plus USB 10Gbps) SSD from Sandisk manages to push the real-world performance close to 900MBps (or 7.2Gbps) whereas USB 3.2 Gen 1 (aka SuperSpeed USB 5Gbps) equivalent can reach close to 400MBps (or 3.2Gbps). It can also work with either legacy USB 3.0 Type-A or USB-C cables. Maximum theoretical data transfer is 5Gbps. USB 3.2 Gen 1 is basically USB 3.0 that was superseded by USB 3.1 Gen 1.In contrast, the Gen 2×1 mode is limited to cables within 1m in order to maintain optimal signal quality. This mode, introduced as part of new specification, boosts 10Gbps transfer rate over a passive USB-C cable of 3m in length. USB 3.2 Gen 1×2 takes advantage of dual-lane operation capability of a certified USB-C cable, providing two lanes of 5Gbps.This mode is also the fastest USB speed that Thunderbolt 3 supports natively. It can work with either legacy USB 3.0 Type-A or USB-C cables. USB 3.2 Gen 2×1 is originally known as USB 3.1 Gen 2 and it provides a single lane of 10Gbps.For this speed mode, it requires the use of certified USB-C cables. USB 3.2 Gen 2×2 defines data transfer rate at 20Gbps over two lanes at 10Gbps each, hence the name SuperSpeed Plus USB 20Gbps on its official namesake logo.The latest specification brings us four speeds altogether and they are as follows: Now that the original USB 3.0 has received two major updates, we are now at USB 3.2. This is largely due to the fact that each new USB standard absorbs all previous 3.x specifications and at the same time gives them new monikers. Since the introduction of USB 3.0, making sense of USB marketing names has been a source of frustrations for consumers.
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