Of course, we have known power sockets, for 230 Volt or previously 220 Volt, in all shapes and sizes. When it comes to installation, we speak of wall sockets. Since the introduction of USB, universal serial bus, this connection standard for computer and audio / video equipment and associated peripherals, or periphery, has expanded enormously.
It is therefore inevitable nowadays that sockets are also equipped with USB connections. We call them USB sockets or sockets with USB. A misconception is that it is believed that these USB connectors can only be used for charging, you can also use them to connect USB devices for normal use!
List of Best USB Wall Sockets:
What is USB?
The universal serial bus (USB) sends data packets in series, serially, over the bus in the device and the cable outside. Only one device can be connected to a USB port at a time. For multiple devices there is a junction box with the designation hub.
Over the years, there have been developments that have increased the speed of the USB. USB 1.0 or LowSpeed still worked at 1.5 Mbit / s or 1.5 million bits per second, in other words 1.5 million parts of a data packet with information per second. USB 1.1 called FullSpeed, jumped to 12 Mbit / s.
This was followed by USB 2.0, also known as HighSpeed, which reached a speed of 480 Mbit / s. Today, USB 3.0 or SuperSpeed is in vogue with a stunning transfer rate of a whopping 4.8 Gbit / s, which is 10 times faster than its predecessor USB 2.0. Added is the latest development, the USB 3.1 which has been given the name SuperSpeed + by the developers, at a speed of 10 GBit / s. USB has a standard electrical voltage of 5 V. Only the electrical current that is supplied or consumed depends on the device. With an outlet with USB you can use that electric current directly.
Operation of a USB Socket
The USB socket is actually an ingenious device. You can use the power outlet and the USB ports or USB connectors at the same time. Useful! High voltage, here 230 V, is combined with low voltage, here 5 V. To make this possible, a transformer, an electric converter for high-to-low voltage, is present in the USB socket. However, the high voltage is alternating voltage, which means that the associated current alternates 50 times per second or 50 Hz.
USB works with DC voltage and the corresponding DC current, which is why there is also an AC-DC converter on board the USB socket. That is an AC to DC converter. Why is this important to know? Even when no device is connected, a USB socket still consumes continuous power.
The stealth consumption of the USB socket is admittedly not much, but still. If you are installing a USB socket for flush mounting, you only need to connect the brown phase wire, blue neutral wire and any yellow-green earth wire to the USB socket. However, only do this if you understand electrical. For the USB part in the socket with USB, nothing needs to be connected.
In our society that is fully digitized and in which audio / video equipment and also computer-related devices are portable, we are increasingly dependent on the availability of USB sockets. Even every self-respecting hotel can no longer do without a power outlet with USB.
There is really a variety of USB sockets available on the market, both as a plug with USB for plugging into a wall socket or as a built-in model. The plug-in USB socket is useful if you want to use a normal socket and still want to have USB connections. Or to convert your normal socket into a USB socket.
The common form of the plug-in USB socket is the standard socket, earthed or not, with one or two USB connections. It is also available in a splash-proof version for humid environments. For installation they are supplied as a single USB socket with one or more USB connections.
You can also buy a USB socket or simply a socket with USB. Then you even have up to 6 sockets plus two USB ports. There are also USB sockets with two USB ports on the market with both connections providing the same power and versions with the difference between the two ports.
Points of Attention
An electrical outlet is referred to as Schuko. A plug-in USB socket has a Schuko female and Schuko male. Chinese for you? Not anymore: Schuko female is the socket part with the holes and Schuko male is the socket part with the two pins.
The USB ports only fit the common rectangular USB-A plugs and these can only be used for the USB 2.0 which has four connection strips in the plug. These strips are for two times data and twice power for bi-directional data traffic in two directions.
USB 3.0 has five connecting strips in the plug. When purchasing, always pay attention to the amperage. What does your device need and what can the USB socket supply? The amperage of the USB socket must always exceed the requirements of the device. Inflation is not possible, because a device is equipped with an overcharge protection anyway and the device itself determines what draws power.