USB video and audio transmission enables the transfer of source imagery (from computers or mobile devices) to a display (such as a screen or projector) using a single USB cable. This function is similar to HDMI, DVI, and VGA. Currently, only USB-C offers direct video transmission through DP Alt Mode, whereas USB-A and USB-B do not support this feature.

USB porttypes

What is USB-A used for? USB-A is often used to connect devices like keyboard & mouse, external hard drives, and webcams.

Generally, any USB interface can communicate with one another when used with the appropriate adapters or cables. USB-A, USB-B, USB-C, and micro USB are all different types of USB connectors, and they may support different USB standards.

In this article, we will introduce what an HDMI® splitter and HDMI® switch are and delve into the disparities between them, covering their functionalities, applications, and distinctive audio-visual specifications. We will also highlight essential considerations when using these devices.

HDCP is a digital content protection standard. When playing HDCP content, all playback devices need to be HDCP compliant and have compatible HDCP versions, or it may cause HDCP issues.

MicroUSBpinout

Consequently, USB-A devices do not necessarily support Quick Charge/Fast Charging; it's important to verify the specifications when purchasing the equipment.

In this article, we clarify the difference between the three main types of USB connectors—UAB-A, USB-B, and USB-C—by comparing their USB standards, speed and bandwidth, charging power, and more capabilities utilized in our daily lives, including video and network transmission.

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USBconnector types chart

1. All specifications are subject to change without notice.2. Brand and product names mentioned are trademarks of their respective companies.3. The terms HDMI, HDMI High-Definition Multimedia Interface, HDMI Trade dress and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing Administrator, Inc.

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USB, or Universal Serial Bus, serves as a vital link connecting computers, mobile devices, and external peripherals. Recent advancements, particularly the introduction of USB-C (Type-C) technology and the establishment of international regulations, have significantly diminished the limitations of USB, contributing to its widespread adoption.

It's also worth noting that not all devices seamlessly support USB-C. Transitioning to USB-C may sometimes involve troubleshooting to ensure compatibility. Being prepared for potential challenges can streamline the process and prevent any unexpected issues.

In the upcoming years, we can expect the introduction of USB-C versions across a wide range of products, with many of them already available in the market. These encompass monitors, mice, keyboards, smartphones, webcams, headphones, speakers, and flash drives. With the majority of devices that once used USB-A transitioning to Type-C versions, the critical question arises: How should we select the right USB devices? When it comes to adapting to the changing landscape of USB interfaces, here are a few key aspects to consider.

First and foremost, there's no need to worry about parting with your existing devices. Adapters are readily available to seamlessly bridge the gap between USB-A, USB-B, and USB-C interfaces. However, it's essential to keep in mind that each USB interface has its inherent limitations. For example, USB-A can't replace HDMI or DP for video transmission, while USB-C provides greater versatility in this regard.

USB B

To understand the types of signals USB-C can transmit, it's helpful to check the USB-C hubs available in the market. These hubs adapt the signal types that USB-C can transmit. Nevertheless, keep in mind that the end devices may not always support USB-C, necessitating transitional interface devices. As USB-C becomes prevalent in mobile devices, these devices will offer greater convenience to users.

USBD

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USB-B devices are less common and are primarily used for data transfer in devices like external hard drives, printers, and scanners. The printer USB cable is often connected via the USB-B interface.

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To future-proof your tech setup, USB-C emerges as the preferred option due to its expanding usage and enhanced capabilities. The global trend is shifting towards USB-C, driven by factors such as EU regulations and the strategic plans of major manufacturers like Apple. As these industry leaders embrace USB-C, other accessory manufacturers are likely to follow suit, gradually adapting to USB-C applications.

What's the difference between USB-A and USB-C? We draw a comparison between the three main types of USB connectors and the USB standards they support. In this chart, you can see USB speed (bandwidth), charging power, and capability supported by different standards and types. We will explain the details further in the following paragraphs.

HDMI ARC (Audio Return Channel) was introduced with HDMI 1.4. This feature allows audio to be sent back from a TV to an audio receiver or soundbar through a single HDMI cable, eliminating the need for an additional audio cable.

In addition to adapters, it's crucial to ensure that you have the appropriate USB cables for your devices. Selecting the right cable can significantly enhance the performance of your devices.

usbtype abc

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For everyday use with standard accessories, USB-A remains a dependable choice. However, USB-C is quickly gaining ground and offers greater versatility.

In the ever-evolving realm of technology, the choice among USB-A, USB-B, and USB-C connectors ultimately depends on your specific requirements. Each of these interfaces has its unique advantages and limitations, making them suitable for various scenarios. As you navigate the dynamic landscape of technology, a comprehensive understanding of these connectors will empower you to make well-informed decisions.

While USB-A generally supports a 4.5W charging capacity, its widespread use has led to the development of technologies like USB Quick Charge/Fast Charging. These technologies, such as QC 1.0 through QC 4+, can support up to 18.5W.

However, it's important to note that these are not inherent to the USB standard, and manufacturers might adjust voltage and current to achieve this power level. For instance, Apple's iPhone 11 Pro and iPhone 11 Pro Max can utilize a current of 9V/2.03A to achieve approximately 18W of power.

MiniUSB

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Generally, USB 4.0 has incorporated Power Delivery, so all USB 4.0 devices should support PD. Still, you need to check the specifications of USB-C devices below USB 4.0 for PD compliance and supported wattages. Device manufacturers may specify the wattage levels, with 18W, 36W, 60W, and 100W being common.

Both USB-A and USB-C support network transmission. This application is useful when your desktop computer lacks wireless capabilities and network interruptions occur. You can share your phone's network by connecting it to your desktop via the USB port, allowing your desktop to remain online even during network disruptions.