What the ‘C’ in USB-C actually means (it isn’t what you assume)

You doubtless work together with a USB port daily, whether or not you are plugging in your telephone to cost or connecting a tool to your PC. In recent times, USB-C, also called USB Sort-C, has develop into the most typical sort of USB port, seen on most smartphones, laptops, tablets, gaming consoles, e-readers, and lots of different units.

Within the cellular world, Android telephones have had USB-C for a very long time, however Apple lastly caught as much as the instances and adopted USB-C on the iPhone again in 2023 with the iPhone 15 sequence, lastly saying goodbye to its proprietary Lightning port.

I truthfully hadn’t thought a lot about USB-C currently as a result of it is develop into so synonymous with all of the tech I exploit that I’ve simply grown used to it. Nonetheless, that modified just lately when my good friend, who purchased a brand new iPhone with USB-C for the primary time, requested me a easy but eye-opening query: “What is the C within the USB-C stand for?” It made me consider a humorous side of know-how: regardless of its widespread use by hundreds of thousands and even billions of individuals every day, many won’t really know what the ‘C’ in USB-C represents. And to be clear, I do not blame them.

As for what the reply is, in all equity, it is not the obvious. If you have a look at a USB-C port or connector, it is not really formed just like the letter C, so that is not the that means. My good friend assumed it stood for connector, which is an affordable guess however not the reply both. To actually perceive the that means of the “C” in USB-C, it requires a little bit of exploration into the historical past of the USB port itself.

USB-C is the newest USB connector

It’s the successor to USB-A and USB-B

The rationale USB-C has its identify is not as a result of the C stands for one thing like charging, cable, or connector. The C would not stand for a particular phrase, neither is it an acronym for something. The C in USB-C serves as an identifier for the design, because it’s the newest connector sort within the USB household, which incorporates two prior older design sorts: USB-A and USB-B.

The USB made its debut in 1996, when seven main tech firms — Intel, Microsoft, IBM, Compaq, DEC, NEC, and Nortel — launched the Common Serial Bus (USB), a common connector for computer systems. USB was designed to make connecting peripherals like keyboards, mice, and printers to PCs simpler. Within the 25 years since its introduction, it has develop into important to many technological improvements, together with smartphones, tablets, e-readers, and extra.

USB-A might be the USB port you are most accustomed to, because it’s the oblong connector that is been used on units for effectively over twenty years now, and continues to be generally seen in the present day on USB flash drives, computer systems, gaming consoles, and extra. It is a thick connector, and given what number of laptops and tablets have been specializing in thinness lately, USB-C has largely taken over its place, due to its compactness and likewise its capability to deal with quicker information switch and charging speeds.

You is likely to be much less accustomed to USB-B, a bulkier sq. connection usually seen on printers and exterior arduous drives. You might also discover USB-B ports on the again of screens, the place they function upstream ports, that means they ship information from the opposite USB ports in your monitor again to your PC. So should you join a keyboard to your monitor’s USB-A port, you will must plug the USB-B port into your PC as effectively, so it may possibly use it. Micro USB, which was once on a number of smartphones again within the day, can also be a sort of USB-B port, it is only a miniaturized model.

That lands us on USB-C, the most recent sort of USB connector. Not like USB-A and USB-B, USB-C is a reversible connector with a symmetrical design, permitting it to be plugged in any orientation. Along with its user-friendly design, USB-C can also be rather more compact than USB-A and USB-B, that means it takes up approach much less area on units. In an age the place telephones just like the iPhone Air and the Galaxy Z Fold 7 exist, having a small but extraordinarily highly effective USB port is integral to holding the units skinny and lightweight.

So, to recap, the “C” in USB-C would not have any hidden that means or stand for an additional phrase. It’s merely a label that signifies the kind of USB connector you are utilizing, which is USB Sort-C. The letter C is used as a result of it follows the sequential order of the USB household, which had USB-A and USB-B previous it.

The ‘C’ in USB-C would not point out its energy both

USB-C ports assist numerous USB protocols that decide information switch velocity

One other necessary element to learn about USB-C ports is that the “C” would not really point out how briskly it’s both. Whereas one advantage of USB-C over USB-A and USB-B is its versatility, because it helps a wide range of USB protocols that its predecessors do not, this additionally makes USB-C a bit complicated as a result of not all USB-C ports are the identical.

The info switch velocity of a USB-C port relies on the USB protocol supported by its inside controller chip and the standard of the cable used. USB-C helps many protocols, together with USB 2.0 with speeds as much as 480 Mbps, USB 3.2 Gen 1 with speeds as much as 5 Gbps, USB 3.2 Gen 2 with speeds as much as 10 Gbps, and USB 4, Thunderbolt 3, and Thunderbolt 4 with speeds as much as 40 Gbps.

In the event you’re interested by how briskly the USB-C port in your machine is, verify the producer’s spec sheet. For instance, the iPhone 17 Pro’s USB-C port is USB 3.2 and helps as much as 10 Gbps, whereas the bottom iPhone 17’s USB port is just USB 2, which suggests it’s restricted to 480 Mbps. Moreover, the charging velocity of a USB-C port relies on the machine’s inside design and the way a lot energy it may possibly settle for from a charger. Like information switch, charging speeds additionally rely upon the standard of the USB-C cable, so earlier than shopping for simply any USB-C cable, verify the supported speeds to keep away from limiting your machine’s efficiency due to the cable.