What is WIFI Adapter or Wireless Adapter: How To Use, Features, and Tips

Nowadays, almost all devices are equipped with WiFi wireless internet. But there is a special place in the market for devices that are not equipped with wireless Internet – these are personal computers. To connect them to wireless Internet, you need WiFi devices. may require wifi on your computer in many cases:

  • There is wireless Internet at home, for example, on a smartphone or tablet, and it must be connected to a PC that does not have WiFi;
  • The computer already has Internet, but I want to distribute it throughout the apartment to save time and money on additional tariffs.

USB wifi Adapters are among the most recommended devices if you want wifi wireless connectivity in a desktop computer. These types of devices can also be used in laptops to improve the wireless capabilities of internal wifi cards that we normally have. We currently have a wide variety of USB wifi adapter, depending on your needs, you can buy some models or others. Today in this article, we explain everything keeping this type of equipment in mind.

Read: 10 Best USB WiFi Adaptors For PC: Buying Guide

What is WiFi adapter, and what is it for?

WiFi adapters are used to implement wireless network functions on devices that do not have WiFi support. This allows computers to receive signals from wireless networks.

What is WiFi adapter
What is WiFi adapter

A WiFi USB adapter is a device that connects to our computer via USB, is a desktop or laptop, and has a pen drive, and allows us to connect to a WiFi network.

Typically, we have to install drivers that come with WiFi USB cards themselves. However, if you use Windows 10, it will likely automatically detect the WiFi adapter and the user’s interference. Will take.

Will install without drivers. In just one minute, we will have this device in operation.

If our computer does not already have a wifi card, the wifi wireless adapter will connect to our router or wifi access point via wifi.

In the case of laptops, everyone has a wifi card, but wifi cards are generally very weak in low-mid-range computers, and this will give us poor wireless performance in terms of both coverage and speed.

There are now two types of adapters: the first can receive only one signal, the second can operate in receive mode and signal transmission mode.) Adapter that has a built-in hotspot app that allows you to create a lift hotspot on your computer.

It is a specialized device capable of receiving and sending data packets over broadband radio communications. In other words, there is a specific frequency range within which wifi technology works. And to transmit a signal over the air, Must convert the data into a radio wave. Conversely, to receive a data packet over the air, this radio wave has to be read and digitized.

This is exactly what the wifi adapter does. It is equipped with a special antenna for capturing and sending radio signals. And to convert and digitize data, the module consists of a microservice service and software. Therefore, it is very important to install the appropriate driver, as it is the one that controls the operation of the module. This is the answer to why and how you need a wireless wifi adapter. But, this is an incomplete answer. Therefore, here we come to the main question.

Why a WiFi Adapter is needed

Friends, you will know that you can run the internet on a phone, laptop, or computer with the help of a mobile hotspot or WiFi Router. Right now, all the software and hardware comes pre-installed on all computers and laptops, with the support of which you can connect your computer or laptop to WiFi Router or Mobile Hotspot. But still, many older operating systems and PCs do not have the feature to connect computers to Router, so we need WiFi Adapter to connect computers to WiFi Router.

What does a WiFi Adapter look like

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You must have seen and used the card reader. The back of the WiFi Adapter is slightly smaller than the card reader. Because it is a WiFi Adapter, there is no slot for inserting memory like a card reader. In this way, the WiFi Adapter is also almost the same as the card reader. The above picture is of a WiFi Adapter, which you can understand by looking at what a WiFi Adapter looks like.

Wifi adapter price

WiFi Adapter will be available in 150 rupees to 1000 rupees, and you can buy it according to your budget and requirement. You can also purchase WiFi adapters from online stores such as Amazon, Flipkart, or Offline Retail Stores.

Friends, I hope you have understood that What is wifi adapter? If you still have any questions, then please share your thoughts with us by commenting below.

Who is the wifi wireless adapter for?

As you already know, this device combines two functions:

  1. Data receiver.
  2. Information sender

It is thanks to this module that the exchange of data packets is possible without a cable connection. It is worth noting that the wifi adapter’s antenna is capable of covering a fairly large area. However, it can be said to be relatively large. After all, the range of an access point is about 100 meters.

We all know what a wifi router is. Also, we know that smartphones, tablets, laptops, and other mobile and portable subscriber devices have a wifi module. This is the one that allows you to use your home network. It is a regular network card that supports wireless technology. In other words, it can operate at a specific radiofrequency.

All devices using this technology are equipped with wireless modules. If we talk about laptops, as a rule, in most cases, two brands of wifi adapters are used:

  1. Atheros
  2. Broadcom

How to choose a good wifi adapter

When choosing a WIFI adapter, it is important to consider the connection method. There are so-called USB adapters that are very easy to use as they can be easily removed and plugged into another computer. Some adapters use the PCI-E interface. It is a set of micro crickets that are inserted into a special slot in the system unit. Before purchasing such an adapter, first of all, you need to check the system unit for the free PCI-E slot, where you can connect the device.

Read: How To Choose WIFI Adapter For PC: 7 Crucial Factors I Follow Personally

One of the most important criteria in choosing an adapter is the wifi standard. Today, the recognized wireless standard is 802.11n, which guarantees fast data transmission up to 300 Mbps. Also, there are new communication standards such as 802.11ac. This latest standard can transfer data from 3000 Mbps to 10 Gbps. But for domestic use, additional money is not required to be paid for speed, as 300 Mbps is sufficient.

This transceiver is also worth noting. The recommended transmitter power is 20 dBm. If the original transmitter power is low, the signal will be very weak, even if the internet source is within the apartment.

If the adapter’s appearance is not very important, you can buy an adapter with an external antenna. He is better at getting a signal but is larger. Besides, there are devices with removable external antennas.

When choosing wifi adapters, you should pay attention to their frequency. Manufacturers began releasing devices with a frequency of 5 GHz, but now adapters operating at a frequency of 2.4 GHz are still common.

You should also pay attention to the presence of the SoftApp function in the adapter. It is recommended to buy adapters from the same company that the routers are in-house, as their compatibility will be much better. This will help you avoid all kinds of connection problems.

The adapter is installed in a special slot on the computer. After installation, the adapter needs to be configured – to install the software required for wireless data transmission. The driver can be installed from the disk included with the device or by downloading it from the official website. After installing the driver, you need to configure the network, select the desired parameters, and access points.

USB Interface Type

There are currently two different types of USB WiFi adapters, which support USB 2.0 at the lowest end and the cheapest, this type of adapter will not provide us with much real speed. However, we will have better coverage (unless They do not have external antennas).

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Those who support USB 3.0 will always be the fastest, giving us the best real speed and are not limited to the maximum speed of just the USB 2.0 interface.

Logically, adapters that use the USB 3.0 interface are the highest-end and most expensive.

Nowadays, the most common thing is to find an adapter with a USB 3.0 interface, but if you buy a low-end device, the most common thing is that it can be USB 2.0 to save cost, and therefore, you get less wireless. Get the performance in terms of speed.3

Dual-band selectable 2.4GHz or 5GHz

With an output to the WiFi 4 standard, or also known as 802.11n, USB WiFi routers, access points, and adapters began to use the 2.4 GHz and 5 GHz bands extensively, both simultaneously and with firmware By selection.

Today , USB WiFi cardsonly support 2.4GHz and other WiFi cards that support both 2.4GHz and 5GHz

 2.4GHz or 5GHz
2.4GHz or 5GHz

If you purchase a USB WiFi adapter, it must have support for both frequency bands, both 2.4GHz and 5GHz.

Just because they are dual-band does not mean that you can combine two bands.

While the router and AP are dual-band simultaneously (broadcast on both bands simultaneously), WiFi adapters are there to choose from.

Qualified dual-band (two bands, but one band or the other, both cannot connect due to hardware limitations) because they do not have two chipsets, but only one is compatible with both bands.

Internal or external antenna

A fundamental aspect of the wifi adapter is its antennas. The more antennas a wifi adapter has, the more speed we will gain with MIMO technology. Therefore, it is recommended that at least one adapter includes two antennas.

Regarding whether they need to be internal or external, if we are going to connect in places close to the access point or router, they can be internal without problems. We will normally get very good wireless performance. Adapters with internal antennas are physically very small, ideal for connecting them to a laptop.

If we are going to connect at locations away from the access point or router, it is highly recommended that the antennas be external. Otherwise, we may have less coverage, and therefore the actual wireless speed is lower.

Typically, these types of adapters with external antennas are physically larger than those with internal antennas. Furthermore, they have a USB base to connect the device to the table, not the rear. In the USB port where it receives less wifi. Fi speed. Real.

If you do not care about the adapter’s size, you will always perform better with a wifi adapter with external antennas. Still, if you are going to use it continuously on a laptop, the size is too much of a problem.

However, there are wifi cards with two antennas, one internal and one external. For cases where we will connect very remotely, this “hybrid” combination is ideal for not having multiple external antennas.

External wifi adapter

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In appearance, these adapters resemble a USB storage device. A standard USB adapter costs from 700 to 1000 rubles. If you search well, you can find machines in the range of 300–400 rubles. Can connect such an adapter to a regular USB port or a USB cable.

Internal wifi adapter

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To connect such adapters to a computer, you have to separate the system unit slightly. The adapters are very easy to connect and are much larger than external adapters.

Many fear that when switched to wifi, the download speed of files will decrease dramatically, but in reality, this is not the case. Typically, each wifi adapter has its bandwidth.

Suppose the Internet connection speed is 1 MB / s, and the adapter bandwidth is 54 MB / s. Based on these data, we can conclude that the Internet speed will not be below because the adapter’s bandwidth is very high.

WIFI card-bus adapter

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These adapters are designed for laptops and PDAs that have a special PC card slot. Such adapters have a built-in antenna. They are very compact and do not require long tuning.

WiFi version you should use

When we go to buy a WiFi adapter, the most important thing is to always look at the compatible WiFi version and also the WiFi class. These two parameters will give us the maximum performance we can get, ie.

The maximum speed we will achieve.

Today we should buy USB WiFi adapters that are at least WiFi 5, this means that it is compatible with the 802.11ac standard, and therefore we will have very good wireless performance.

We will soon see the first WiFi adapter with WiFi 6, which will allow us to get a higher wireless transfer rate.

If you have a WiFi router or AP with this standard, we will improve with Wi. -6 XNUMX cards are:

  1. MU-MIMO support so that routers can send information to us simultaneously with other devices and optimize wireless networks’ overall performance.
  2. Energy-saving thanks to TWT (Target Wake Time), ideal for laptops.
  3. BSS color to minimize interference with other Wi-Fi networks.

Not only is it very important to use the Wi-Fi version, but we also need to check if it supports the 802.11b / g / n standards, that is, if it supports the 2.4 GHz band for connecting.

There are some models of Wi-Fi adapters that do not support this band and only support the 5GHz band.

Which Wi-Fi 5 or Wi-Fi 6 should you buy?

Since the Wi-Fi version of the adapter is as important as the Wi-Fi class, usually we can see terminology like «AC 1200» on the adapter. This means the combined speed of the two Wi-Fi frequency bands.

Which Wi-Fi 5 or Wi-Fi 6 should you buy
Which Wi-Fi 5 or Wi-Fi 6 should you buy

The higher this number, the more performance (actual speed) we get. If we see that “AC” appears, it’s Wi-Fi 5, and if we see “AX,” it means that it is Wi-Fi 6.

Currently, we can find the following Wi-Fi classes in the Wi-Fi adapter. Depending on our requirements (and budget), it would be worth buying one or the other:

  1. AC433: This is an adapter with an antenna, capable of receiving up to 5Mbps with only wifi 5 in the 433GHz band, not the dual-band.
  2. AC600: This is an antenna and dual-band wifi adapter. We can get up to 4Mbps with wifi 150 in the 2.4GHz band and up to 5Mbps in 5GHz with wifi 433.
  3. AC750: This is a wifi adapter with two antennas and a dual-band. We can get up to 4Mbps with wifi 300 in the 2.4GHz band and up to 5Mbps in 5GHz with wifi 433.
  4. AC867: This is a wifi adapter with two antennas, capable of receiving up to 5Mbps with wifi 5 in the 867GHz band, not a dual-band.
  5. AC1200: This is a wifi adapter with two antennas and a dual-band. We can get up to 4Mbps with wifi 300 in the 2.4GHz band and 5Mbps wifi 867 in the 5GHz band.
  6. AC1300: It is a wifi adapter with two antennas and a double band. We can get wifi 2.4 up to 256Mbps and 4QAM in 400GHz band and 5Mbps wifi 5 in 867GHz band.
  7. AC1750: This is a wifi adapter with three antennas and a dual-band. We can get 4Mbps in the 2.4GHz band and 5Mbps in the wifi 450 and 1,300GHz bands. They are the high-end ones.
  8. AC1900: This is a wifi adapter with three antennas and dual bands. We can get wifi in the 600GHz band with 5Mbps in the 2.4MF band and 2.4GHz 1,300GHz band. they are tall. -Finish.

Manufacturers have not yet released Wi-Fi USB cards with Wi-Fi 6 standard, but most likely, they are X3000 class max (2 antennas).

Compatible with 160 MHz channel width

In the 5GHz band, WiFi 5 or WiFi 6 standards, WiFi access points, and routers can use a channel width of 160MHz.

With the same number of antennas in a WiFi adapter, we can get double the speed with the same number of antennas.

Typically the WiFi 5 and WiFi 6 standards have a channel width of 80MHz. If we doubled this channel’s width, we doubled the number of WiFi antennas inside (or outside) the adapter. Will double without speed.

160 MHz channel width
160 MHz channel width

Modern USB WiFi adapters provide wireless signals from access points, routers, and other devices. Many computers and laptops are already equipped with WiFi function, but you can use a USB adapter if it is not available. These devices are similar to small flash drives but have different technical features.

It would be best to closely consider the parameters that mark the antenna power (ideally, at least 20 decibels). Thanks to this, it will be possible to select even the weakest signals. An external antenna connector would be an added advantage. The antenna can be purchased as a separate device or as a set.

In some adapter models, one can raise two antennas to the operating mode, which will increase the signal quality and increase the data transfer rate. You can buy compact models with antennas built into the body of the device. The case should preferably have ventilation holes through which heat dissipation occurs. The device’s performance may deteriorate significantly due to the absence of such spots.

Can find the main features of the adapter on its packaging. The front side contains information that lists the parameters that the device supports, access options for quick configuration of adapters, and security method options. Also, one of the most important points is the support of multiple connection modes between two computers.

One of the most popular models on the market today are the D-Link DWA-127 and D-Link DWA-566 adapters.

Configuring a wifi adapter on a computer

For the initial configuration of the wifi adapter, the following components are required:

  1. Wifi adapter only;
  2. CDs with drivers and other software;
  3. user guide.

1. First of all, you need to install the device in a USB port. It is best to use the ports located on the back of the system unit, as they are connected to the motherboard and are already fully ready for use.

2. You can use the ports on the front side of the system unit, but first, make sure that they are in working order. After connecting the device, a message states that a new device has been detected.

3. Next, you need to install software and driver packages. You should also install software utilities, and they will not be super-useful, as they can help you adjust network parameters and perform more fine-tuning. Next, you need to see the network connection display (the network connection icon is located below the taskbar).

4. In the Network Connection drop-down window, a list of devices connected to the PC will be listed, and you must select the one that is currently installed. After that, you need to use the left mouse button on a new connection. In the Open Network Connection Available window, click New Network to enter a password.

WIFI Adapter How work

Devices are receiving and transmitting data over the TCP / IP protocol. The work of the selected frequency range manufacturing plant is 2.4 GHz. There is another type of range which is 5 GHz. In the modern world and tall buildings, the first type of band is very noisy, as almost all residents use routers for this frequency.

When a person enters any site through a person, sending and transmitting the data pack is routed to the router, then the corresponding area to send is wired and then home. The wire is transmitted to the router, and your Wi-Fi receiver captures this signal from the router. The desired page opens on the screen of your laptop or computer.

When receiving and transmitting data plays an important role, the receiver’s standard and the router, compatibility, frequency at which they operate. The speed of your PC on the Internet will depend on them. Therefore, a Wi-Fi receiver is important to consider all these features.

What is a WiFi device for?

When building a radio network at the office or home, you have to use devices that do not have wireless functions. For example, the system blocks computers, televisions, game consoles, and more. Even \ u200b \ u200b that if the device is equipped with a wireless client, it is often necessary to purchase and install modern wifi USB adapters that support fast communication formats.

After all, information technology is constantly evolving. A device released 2-3 years ago is now completely outdated. Every day, more and more miniaturized devices are produced, and function and parameters are increasing.

If a few years ago, it was necessary to install a switched, strapped twist-cable through the apartment to supply Internet to two personal computers simultaneously, then today, everything is much simpler. Just install a USB adapter on your PC wifi, which is compatible with all versions of the operating system, and that’s it – network ready. For such intermittent access points, you can connect multiple wireless devices at once

For example, communicators, laptops, and other computers, To support such networks, use specialized software virtual wifi. This software is at the core of the Windows 7 operating system. This wireless network supports high-end WPA2 PSK encryption.

How to connect a Wi-Fi adapter to a computer or laptop


For an integrated WiFi adapter, this step is skipped. The internal receiver plugs into an expansion slot on the motherboard. To connect it, you need to remove it from the system unit, install it in the white PCI slot. There can be many of them. It is better to use one with the serial number “1” (if it is free) for these purposes.

Next, must fix the WiFi adapter board with a bolt that is screwed into the case. In the next step, the computer is assembled and returned to its original state. All described manipulations only need to be done with the equipment turned on. If you need to connect an external WiFi receiver, it is unnecessary to turn off your computer or laptop.

This is sufficient to find the required rectangular connector and to install the adapter in it. For regular PCs, it is recommended to use USB sockets that are brought out of its backside and soldered to the motherboard.


The next step is software for a PC or laptop. First, you need to install the drivers. When a new device is connected, it searches for the software required for its normal operation.

At the end of this operation, a message should appear stating that the equipment is installed and ready for use. But if the required software is not found, a message will appear stating that the operating system did not find it. In this case, you need to install it manually.

A CD is included with each adapter. It has the necessary driver without fail. If the disc is lost, you can download the required information from the manufacturer’s official website. We then launch the installation version of this software and install it on our local computer or laptop, following the wizard’s instructions.

After that, a gray staircase should appear in the lower right corner of the monitor. We click on it with the left mouse button. In the list that opens, we find the wireless network that we need and connect to. If necessary, enter the password to gain access.


In the last step, you need to check the performance of the scheduled connection. The receiver for the computer is already properly configured. To test, you need to launch anyone present on your computer (Microsoft Explorer or Chrome).

Then we put the mail.ru address on its address bar and hit “Current.” After that, this portal should open. Another nuance to be noted during the sanitization process: the router’s operating mode and Wi-Fi spectrum must be the same. For example, if one of them has “B” and the other has “N,” it would be impossible. However, the memory network will be present in the list of available connections.

What are the best ones to buy?

In this article, we have tested many lift adapters, both USB and PCI, and you can reach our ranking. The best are USB pick adapters, where you will get all the analysis in-depth and by rating.

Before purchasing any of them, we should pay attention to their technical specifications, Wi-Fi versions, Life Class, whether it supports 160MHz or not, and even have external or internal antennas.

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