What is USB-C(also know as USB Type-C)

What is USB Type-C? We are all quite familiar with the USB Type A and Type B connectors. After years of USB Type A and B, USB Type-C is the latest advancement in USB ports. A USB type-C is the new connector that enables data and energy transfer. USB Type C and USB 3.1 are two different properties and must not be confused as interchangeable. Below show the USB-C key features.





The best advantage of the new USB Type-C connector is its reversibility. This 24-pin USB connector can be used both ways. As with older USB ports, the user does not have to worry about flipping it over to see which side to insert in the port. This comes as a big relief because hardly anyone can connect a device the right way in the first try. No more fumbling with these plugs.


The USB type-C connector itself doesn’t have anything to do with speed. The USB Type-C is more of a physical upgrade. Unless of course it is combined with USB 3.0 or 3.1 that speed up data and energy transfers. USB 3.0 and 3.1 are discussed in detail later.

Power Delivery

USB type-C cables support at least 3A current (up to 60W) and a maximum of 5A (100W) current. USB type-C cables not only charge devices but can also charge laptops. While the USB 2.0 connection could only charge mobile phones and tablets, the USB type-C offers much more. In fact, products such as Google’s Chromebook pixel and Apple’s Macbook are already using their USB type-C ports as charging ports.

Small Size

The USB type-C connector is small in size yet powerful. It is roughly 2/3 times smaller than the standard Type –A connector. As devices become thinner and sleeker, this conveniently sized connector works well with new devices.

USB Type-C Compatibility

 40Gbps of PCIe 3.0×4 data

HDMI 2.0 and DisplayPort 1.2

Backward electrical and protocol compatibility with Thunderbolt 1 and 2

 5 or 10Gbps of USB data

Power Delivery options for 15 or 100W of power

“Alternate Mode” for HDMI 1.4b,DisplayPort 1.3,or MHL 3.0 Video

Backward electrical and protocol compatibility with USB 3.0

 Up to 480Mbps of data

Up to 2.4A of Power


USB Versions Overview

USB 1.1: Released in August 1998, this is the first USB version to be widely adopted (the original version 1.0 never made it into consumer products). It has a top speed of 12Mbps (though in many cases only performs at 1.2Mbps). It’s largely obsolete.

USB 2.0: Released in April 2000, it has a max speed of 480Mbps in Hi-Speed mode, or 12Mbps in Full-Speed mode. It currently has the max power out put of 5V, 1.8A and is backward-compatible with USB 1.1.

USB 3.0: Released in November 2008, USB 3.0 has a top speed of 5Gbps in SuperSpeed mode. A USB 3.0 port — and its connector — are usually colored blue. USB 3.0 is backward-compatible with USB 2.0 and its port can deliver up to 5V, 1.8A of power. This is sometimes refereed to as USB 3.1 Gen 1.

USB 3.1 (sometimes refereed to as USB 3.1 Gen 2.): Released on July 26, 2013, USB 3.1 doubles the speed of USB 3.0 to 10Gbps (now called SuperSpeed+ or SuperSpeed USB 10Gbps), making it as fast as the original Thunderbolt standard. USB 3.1 is backward-compatible with USB 3.0 and USB 2.0. USB 3.1 has three power profiles (according to USB Power Delivery Specification), and allows larger devices to draw power from a host: up to 2A at 5V (for a power consumption of up to 10W), and optionally up to 5A at either 12V (60W) or 20V (100W). The first USB 3.1 products are expected to be available in late 2016, and will mostly use USB Type-C design.

USB-A 2.0USB-A 3.0Micro-USBMicro-BMini-BUSB-BLightningUSB-C

USB Versions

Top SpeedMax Power OutputPower DirectionCable ConfigurationAvailability
USB 1.112MbpsN/AN/AType-A to Type-B1998
USB 2.0480Mbps5V, 0.5AHost to PeripheralType-A to Type-B2000
USB 3.0/USB3.1 Gen 15Gbps5V, 0.9AHost to PeripheralType-A to Type-B2008
USB3.1/USB3.1 Gen210Gbps20V, 5ABi-Directional/Host to Peripheral(Compatible)Type-C Both Ends, Reversible Plug Orientation/Type-A to Type-C(Compatible)2013



USB Type-A

We know USB Standard-A, USB Type-A is the original design for the USB standard. It uses a flat rectangular shape.

On a typical USB cable, the Type A connector, also known as the A-male connector, is the end that goes into a host, such as a computer. And on a host, the USB port (or receptacle) where the Type A-male is inserted, is called an A-female port. Type-A ports are mostly in host devices, including desktop computers, laptops, game consoles, media players and so on. There are very few peripheral devices that use a Type-A port.

Different USB versions including USB 1.1, USB 2.0 and USB 3.0 (more on differing versions below) currently share the same USB Type-A design. That means a Type-A connector is always compatible with a Type-A port event if the device and host use different USB versions. For example, a USB 3.0 external hard drive also works with a USB 2.0 port, and vice versa.







USB Type-B

Typically, the Type-B connector is the other end of a standard USB cable that plugs into peripheral device (such as a printer, a phone or an external hard drive). It’s also known as Type B-male. On the peripheral device, the USB port is called Type B-female.

Since the peripheral devices vary a great deal in shape and size, the Type-B connector and its respective port also come in many different designs. Up to now there have been five popular designs for the USB Type-B’s plugs and connectors. And since the Type-A end of a USB cable remains the same, the Type-B end is used to determine the name of the cable itself.

The original standard (Standard-B): This design was first made for USB 1.1 and is also used in USB 2.0. It’s mostly for connecting large peripheral devices, such as printers or scanners to a computer.

Mini-USB (or Mini-B USB): Significantly smaller, the Mini-USB Type-B ports are found in older portable devices, such as digital cameras, phones and older portable drives. This design is now close to obsolete.

Micro-USB (or Micro-B USB): Slightly smaller than Mini-USB, the Micro-USB Type-B port is currently being replaced by USB-C as the charging and data port for latest phones and tablets.

Micro-USB 3.0 (or Micro-B USB 3.0): This is the widest design and mostly used for USB 3.0 portable drives. Most of the time, the Type-A end of the cable is blue.

Standard-B USB 3.0: This design is very similar to the Standard-B, however, it’s designed to handle USB 3.0 speed. Most of the time, both ends of the cable are blue.

USB Type-C (or USB-C)

Physically, the size of the Type-C port and connector is essentially the same size as the Micro-B USB described above. This means it’s small enough to work even for the smallest peripherals, such as smartphones and tablets. USB Type-C and Micro-B connector are almost same,It both are small size. USB Type-C allowing reversible plug in. You also don’t need to worry about inserting it inversion, as it will run in two ways. USB Type-C provide high speed and maxium power output,it solve the previous many USB problem. USB-C has been widely used in many mobile phones and tablet PCs sine 2015. Many new storage devices also use USB-C ports instead of USB-B ports. Almost all devices that support USB 3.1 use USB-C ports. USB 3.1 maximum speed of 10Gbps, can provide up to 20 volts (100 watts) and 5 amps of power output.






What’s The Difference Between USB-C and USB 3.1

Never confuse USB Type-C with USB 3.0 or 3.1. The USB Type-C refers to the physical shape and design of USB ports. In contrast, USB 3.1 is a technology standard. This distinction is quite important since not all USB type-C ports carry USB 3.1 for now. Earlier versions of USB type-C connectors are still using USB 2.0 technology to support older products. Over time as older products phase out, you might not need to differentiate but at the moment attention to these details is important when buying a USB type-C cable or USB type-C hub. USB 3.0 has a bandwidth of 5Gbps while the USB 3.1 has a bandwidth of 10Gbps.

USB Type-C is not a new technology standard. It does nothing for speed or efficiency; rather the USB Type-C is more of a change in physical outlook. When the Type-A plugs seemed too large for mobile devices, the micro and mini USB ports were introduced. Similarly, over time the need for a reversible connector was realized and hence USB Type-C was designed and introduced. The USB type-C connectors are fast becoming a standard feature for all new devices from laptops, notebooks, mobiles to cameras.

What is The Difference Between USB Power Delivery and USB Type-C?

USB- Power Delivery (USB PD) is a specification standard which supports power delivery up to 100W while transmitting data over the same cable at same time. USB Type-C is a new reversible USB connector specification that can support a number of new standards including USB 3.1 (Gen 1 and Gen 2), Display Port and USB power delivery. The USB Type-C ports by default can support the power of 5 V up to 3A. If USB Type-C port is implemented with USB PD, it can support up to 100W as defined in the USB PD specification. So, having USB Type-C port does not mean that it supports USB PD. Not all USB Type-C have Power Delivery function, only the USB Type-C which supports USB Power Delivery specification standard has this function.






Technological Advancements Have Helped Businesses, USB Type-C Fixing This Age-old Problem

The previous USB interface variety, which brings trouble to the user, which not only allows users to purchase different wires for different devices, but also because the old USB interface standard has been unable to meet the needs of high-speed data transmission, In this case, USB-C was born. USB Type C and USB 3.1 have been replaced by USB Type B and older versions of USB. We are looking for a more convenient and efficient data and energy transfer mechanism. The USB Type C connector will charge the notebook via a portable battery, thereby increasing the power options. We are looking for a standard technology to solve our charging, data transfer problems while reducing the port on laptops and mobile devices.


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