Which USB port do I need and what is the difference?
In a world of increasing digitalisation, USB connections have become indispensable. Whether they are used to charge electrical devices or for data transfer, they are an integral part of our everyday lives. Brennenstuhl also offers a selection of products that rely on USB A and USB C connections.
The long-standing USB A connection
The USB A connection was the most common connection for many years. This will now slowly change due to a new regulation within the EU. However, it will be a few years before it disappears completely from the scene due to the devices still in circulation. The charging power varies depending on the technology installed inside. For the vast majority of USB A ports, this is 18W.
The new USB C connection
The new USB C connection is the latest standardised format for plugs, cables and sockets. It was developed in collaboration with leading technology companies.
The law was passed in 2022 and came into force on 28 December 2024. Since then, this connection has been mandatory for all small devices and associated charging cables in order to end the chaos with different cables. Since this date, the new standard has applied to smartphones, headphones, tablets, digital cameras, headphones, portable video game consoles, keyboards, navigation devices, e-readers, headsets and portable speakers. This charging standard will also apply to laptops and notebooks from 2026. The USB C connection has a symmetrical design and enables easy handling, as a USB C cable can be plugged into the device on both sides. Unlike a USB A connection, the direction does not matter. The USB C connection is also usually more powerful than the USB A connection.
As charging cables and devices with a USB connection will still be in circulation in the coming years, both connections will still be in demand. In the longer term, however, the USB C port will completely replace the USB A port.
However, if several devices are connected at the same time, only the maximum charging capacity of the power strip can be reached. How much output can ultimately be drawn from the individual charging socket depends on the technology installed in the product and is always different. For more detailed information, therefore, always refer to the product label.
USB C Power Delivery provides the option of faster charging. You can find more information about Power Delivery here
How much energy do small devices need?
Most commercially available small devices require significantly less energy to charge than the maximum possible output from the power strip.
Below is a list of some small devices with their required charging power
- Smartphones: approx. 5-20W
- Laptops approx. 60W-100W
Multiple socket outlets with USB
Multiple socket outlets with USB C