USB Connectors and Their Common Types

When you are working with computer systems and electronic devices that involve the use of accessories and quick-removal devices like mice, keyboards, external hard drives, and more, it is common to use a connector known as a USB for standard operations. The Universal Serial Bus (USB) is an industry standard for connecting a wide variety of devices to a computer, and several types of USB connectors have been introduced to the market over the years to accommodate different devices. As each has their own specific use and features, we will take a closer look at the most common types so that you have a better understanding of what they do.

USB Type-A

The USB Type-A connector is the original format for the technology, and it is the most recognizable and widely used type across all USB connectors. For their design, Type-A connectors exhibit a flat, rectangular plug with flattened terminals that slide into each other when a male plug is connected to a female jack. Due to the placement of all connector elements, Type-A connectors can only be inserted in one orientation. It is quite common to find a number of USB Type-A receptacles on a typical computer or USB device, allowing peripherals such as a mouse, keyboard, or flash drive to be connected with ease.

USB Type-B

USB Type-B connectors have a fairly different appearance when compared to the Type-A option, featuring a square-shaped port where the bottom corners are slightly angled. With this shape, the receptacle will only permit a connection to be established when the male port is correctly oriented upwards. Generally, USB Type-B connectors are used for upstream connections where the peripheral device is to be connected directly to the host device for data transfer. One common example of a device that uses a Type-B connector for operations is an external hard drive dock that provides power.


For smaller devices and rechargeable technologies, the Micro-USB connector is common. Coming in a more compact size when compared to the standard Type-A connector, the Mini-USB may be used for digital cameras and MP3 players. As more powerful options have come about in recent years, the Mini-USB has slowly begun to wane in popularity.


The Micro-USB serves as the main replacement of most Mini-USB connections, coming in an even smaller size to benefit smartphones, tablets, and other such devices. While the Micro-USB connector has a different shape than the Mini-USB, it is still fairly compatible with most standard USB cables.

USB Type-C

The Type-C connector is the most recent addition to the family, also being the most versatile. Unlike other connector options, Type-C connectors are reversible, and they boast much faster data transfer speeds to benefit more data-oriented applications and needs. As Type-C connectors can connect to an external display and handle high power delivery in addition to their data transfer features, they have found use for laptops, tablets, cell phones, and various other portable devices.


As each common type of USB connector has its own specific use and features, it is important that you determine which is best for your individual needs prior to making a purchasing decision. Once you are ready to begin procurement, let the experts at Just Connectors supply you with everything you require while offering highly competitive pricing and rapid lead times. We carry over 2 billion ready-for-purchase products on our database, all of which cater to a diverse set of industries and applications. Take the time to explore our listings as you see fit, and be sure to use our online RFQ forms for requesting a quote for your comparisons when you find items of interest. With team members working around the clock for customer needs, you can expect a customized response to any request within 15 minutes of us receiving and reviewing a submission. Get started today and see how Just Connectors can operate as your strategic sourcing partner for all your operational needs!


December 27, 2023
December 20, 2022

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