What can be the best USB 3.1 ever?

The latest USB standard 3.1 with aUsb Type C plug promises data rates of 10 GB / s, power supply with up to 100 W, external signals through Alternate Mode and a uniform, twistable connector. But even three years after the adoption of the standard, the industry is still lagging behind with the implementation.

In the meantime, the first SSDs on the market are capable of temporarily running 4 lanes of PCIe 3.0 x4. At this level, the data transfer rate is almost 4 GB per second. USB 3.1 Gen2 would be over-excited even with full functionality. Superspeed + corresponds to a gross speed of 1.25 GB / s.

552017 now the first processors, either themselves or by chipset, are able to send out USB 3.1 Gen2 signals with 10 GBit / s. The PC industry still has one or two years to produce the appropriate cables, sockets and plugs, which can transmit the targeted speed without interference. Up to now a cable length of a maximum of 1 meter is the limit.

For consumers, this means continuing: Waiting. If you need a faster data transfer, this should be based on USB 3.0 or USB 3.1 Gen1 and high-quality components.

The short history of the Universal Serial Bus (USB):

USB 1.0 (1996):

The beginning of the end of parallel, serial, keyboard and mouse jack and various interrupt problems. The idea of plug-and-play is transferred to the interfaces.

Low-speed mode: 1.5 Mbps (~ 200 KB / s)

Full-speed mode: 12 MBit / s (1.5 MByte / s)


USB 2.0 (2000):

USB memory sticks and USB hard disks benefit from the higher data transmission rate, but the flash technology proves to be innovative and soon understated. The plug-and-play works quite neatly, however, the cable connection technology becomes more complex and suffers from quality problems.

High-speed mode: 480 MBit / s (theoretically 60 MByte / s, real ~ 35 MB / s)


USB 3.0 (2008):


The performance of modern data carriers finally receives a USB interface, which addresses the data rates of SATA 6G and SAS 6G. External SSDs can now be copied almost at maximum speed.

Super-Speed USB: 5 GBit / s (gross 625 MByte / s, net 450 MByte / s)


USB 3.1 (2013) [from 2014 onwards in USB 3.1 Gen1]


Through USB 3.1 the marketing of the various component suppliers can send out many confusing messages. Even from the perspective of the year 2017 little is implemented which Gen 1 and Gen 2 can accomplish. Only a few Intel processors are now mastering the data transfer capabilities of USB 3.1 Gen2 from the chipset level. In AMD’s latest processor called Ryzen, the fast USB interface is directly integrated.

Enhanced Super-Speed + Gen 1: 5 Gbps (gross 625 Gbyte / s)


USB 3.1 Gen2 (2014) [USB 3.1 Gen2 Type-C]

USB 3.1 Gen2 seems to be the non-plus-ultra of the universal interface. It combines high speed with a point-balanced plug, which finally completes plugging as with the Type A or B plug. The USB interface now supports Thunderbolt devices as well as high-resolution 4k monitors. Last but not least, 5 amp currents could be transmitted via the interface as per specification.

The so-called power delivery mode, however, no longer works with a voltage of 5 volts, but requires 20 volts to charge power modules with 100 watts. But be careful: without the proper configuration and the correct cables, equipment could quickly rub off.

This sounds almost perfect for modern tools. But Thunderbolt is still a bit further. There is still something with USB.

Enhanced Super-Speed + Gen2: 10 Gbps (gross 1.25 Gbyte / s; net 800 Mbyte / s)

Superspeed +: 10 GBit / s (gross 1.25 GB / s, net 800 MByte / s)

Leave a Reply