What is a network device? View now to choose the right network device for your needs

In the age of technology, network equipment is an indispensable item in life. Network equipment has the function of connecting and transmitting Internet signals, serving daily needs. Let’s find out with Tnhelearning.edu.vn through the article below!

What is a network device? Why should you use network equipment?

A network device used to connect 1 or more LANs (internal computer networks), capable of connecting many Segments (network cables) together depending on the number of ports on the device used in the network. Network devices have distinct characteristics and play different roles in the transmission of Internet signals.

Network equipment helps to ensure Internet connection operation, no flickering, network drop,… Wide network transmission range, easy to connect anytime. Connect quickly to devices that quickly serve your needs in life.

Some popular network devices today such as: USB wifi, Router, Repeater, 4G WiFi transmitter, …

Choose the type of network device that suits your needs

USB Wifi

USB WiFi is a WiFi Adapter, an electronic device that has the same structure as a USB port, so it can connect to a computer via USB. They will receive waves from modems and routers to make wifi waves more stable than computer connections, there will be no network loss, flicker or lag when the modem or router is located far from the computer.

Normally, USB WiFi has 3 main parts: the part that comes into contact with the USB port, which needs to be broadcast is the WiFi part of the device, the USB microchip. Currently, many USB WiFi designs have antennas to support WiFi reception, but not all types have them.

USB WiFi supports fast connection network devices, good signal transmission, compact easy to carry, WiFi broadcast for other devices to use, reasonable price. Be careful when using this device because this device is quite small and easy to drop. Some types of devices are not compatible with USB WiFi such as TVs that do not have built-in WiFi in them.

Use USB WiFi in cases such as: using a desktop computer that cannot connect to WiFi (only a LAN cable can be plugged in), a laptop with a damaged/weak WiFi card, intermittent network, lag.

Please refer to some USB WiFi here

Router

Router (router) is a network device that forwards data packets between computer networks. About structure: Router is a device with LAN ports (may have 1 or many LAN ports), WAN ports or includes WiFi broadcasting antennas.

For a WiFI Router to work, the WiFi Router first needs to connect to a Modem . This modem will be connected to the Internet connection of network providers.

Between the modem and the WiFi Router will be connected via a network cable from the LAN port on the main modem through the WAN or LAN ports depending on the operation mode. Network devices all have their own IP , Router will help route and transmit packets in the Internet environment in the most accurate way.

The WiFi router has the function of sending network data packets between two or more different WiFi networks. It is a WiFi hotspot so that receiving devices such as phones, computers, televisions can connect via WiFi or Lan to be able to connect and use Internet services.

WiFi router has the advantage of not being interfered with by other devices, connecting other networks together, reducing crowding from networks.

Besides, it still has disadvantages such as limited range (30 – 46m, 60 – 90m), your house has many walls, WiFi speed will be limited, few devices support (receiving and broadcasting) and the price is high compared to USB WiFi (about 700,000 – 2 million).

WiFi routers are often installed in households, offices, hospitals and many other areas.

Please refer to some routers here

Repeater

WiFi repeater is a WiFi extender, considered a support device to expand WiFi network coverage in the home. That is, it works by taking an existing WiFi signal in your home, then amplifying and retransmitting that signal to the devices you use.

The WiFi Repeater installation is very easy to do. First, you need to choose a location to place the device – this location can receive the existing WiFi network signal in your home, and then you need to power the WiFi Repeater to work.

Log in information on your computer, phone, tablet, … via the app or link depending on the manufacturer of the Repeater, and enter the password of the current WiFi network to allow the WiFi Repeater to connect. connection and start to expand the coverage area.

The advantage of the Repeater has the ability to amplify to help the signal propagate farther and stronger, suitable for large spaces, quick to install, without having to pull cumbersome wires, suitable for high-rise buildings. WiFi repeater also depends on the receiving wave, for poor quality WiFi waves, the receiver will also be limited.

Please refer to some Repeaters here

4G WiFi Router

4G WiFi transmitter is a device that combines 4G technology and WiFi transmitter technology. This 4G WiFi transmitter uses 4G sim to broadcast WiFi for other devices to connect, helping users connect to the internet with devices such as laptops, smartphones, smart TVs, tablets, etc.

The structure of the WiFi transmitter is very compact because it does not use a plug, but uses a battery to operate, so it can be brought to many places. 4G WiFi transmitters can be battery powered, plugged in or through a car charger.

With the support of 4G WiFi transmitter, you can connect to 4G network on many devices other than mobile so you can surf the web, play games, watch movies online everywhere.

The minus point of the 4G WiFi transmitter is that there is no port to connect to a wired network (LAN), using a mobile data network, so the network speed depends on the quality of the network as well as the coverage of the carrier you use. used for the transmitter.

Please refer to some 4G WiFi transmitters here

You can refer to the spreadsheet below to make the right choice :

Criteria	USB Wifi	Router	Repeater	4G Wifi Transmitter
Demand	Need to move to many places.	Want to connect to multiple devices. Need security and flexibility in use.	Need to expand Wifi coverage in the house. Amplify WiFi signal.	Need to bring to many places. Wi-Fi hotspots flicker, use 4G WiFi transmitters to support.
Coverage density	Connection speed depends on carrier data usage (speed 150 Mbps)	The connection speed is usually more stable, depending on the Internet provider (providing 2 bands 2.4 GHz and 5 GHz) (speed 150 Mbps – 300 Mbps)	Stable connection speed, depends on the main router (speed 300 Mbps)	Connection speed depends on carrier data usage (speed 150 Mbps)
Number of visitors	2 – 3 people	4-5 people	5 – 8 people	2 – 3 people
Price range	130 – 220 thousand VND	300 thousand – 3 million VND	170 thousand – 1 million VND	1.2 – 2 million

Find out network band

Band is the frequency range of electromagnetic waves used to receive and transmit communication signals between devices using wireless technology. There are 2 network band bands, 2.4GHz and 5GHz , the biggest and most prominent difference between these two is speed and range.

It depends on devices that support that network band. Under ideal conditions, 2.4GHz WiFi will support a peak connection speed of 450Mbps or 600Mbps , depending on the type of network device you use. While 5GHz WiFi will support connection speeds up to 1300Mbps .

5GHz network band can completely eliminate interference problems from wireless devices, fast network connection, but the coverage is smaller than 2.4GHz network because the operation at high frequency leads directly to The greater the signal loss over the distance.

Old cordless phones, cameras, home appliances and some other devices all tend to use the 2.4GHz band. Phones, laptops, and tablets that support the 5GHz band can access 5GHz WiFi.

The 5GHz band is used for more data-intensive devices such as laptops, phones or tablets because it can transmit higher amounts of data and is used by fewer devices, so with higher bandwidth. The 5GHz frequency is less congested, which means you can get a more stable connection and a much better connection speed.

Choose the internet speed

Fast transfer speed will help you download data faster, watch movies and download files at the same time without affecting movie quality. So let’s see how the speed is suitable for the needs of individuals and families.

150 Mbps

At this speed you can use basic applications completely comfortably, surf the web quickly. Suitable for 1-2 people, 3 or more people, the network speed is not responsive, easy to use, interference, weak network, long download. With online game applications, the connection will be greatly affected, the speed in the game will be slow.

300 Mbps

With this speed you can send mail, stream content extremely smoothly or share files. This is the average speed most homes use, suitable for watching movies on computers and televisions at home. Even online games are connected quickly, loading speed is smooth, without interruption, but this speed is okay but not fast enough.

From 300 – 1201 Mbps

This speed is called fiber optic network, which is being used by a large number of customers. You can freely surf the web, download high speed, watch movies online as you like or make facetime calls to people quickly. This is a fast network speed, helping you to play online games without fear of lag, providing a smooth experience.

Choose more utilities of network devices

Fast connection speed

Network devices help you access the Internet stably, experience online games, surf the web, watch videos smoothly, without fear of lag, meeting all your needs in life.

Good security

The router helps to secure personal data against threats and attacks and allows parents to block specific websites or types of applications that do not want their children to visit.

Help set a schedule to turn on / off WiFi to manage and protect children, peace of mind even when not at home with children.

Modern compact design

Router and Repeater bring a modern space to your home with a compact design that does not take up space. Conveniently can be placed anywhere in the house, quick to install and easy to clean.

USB WiFi is super small in size, you can easily carry it around and use it anytime, anywhere, can be plugged into a desktop computer, laptop without having to remove it.

The 4G WiFi transmitter has a compact and simple design, convenient to carry anywhere such as picnics, work, on the road or outdoor activities.

Select brand, place of manufacture.

Currently on the market, there are many different brands of network equipment with diverse models and functions for you to choose from. Please refer to some reputable brands to help you rest assured to choose the right network device for your needs.

Criteria	Brand, Place of Manufacture	Outstanding Features	Warranty Tnhelearning.edu.vn	Price range
TP-Link	– Brand: China – Manufacture: China	Equipped with IGMP Proxy / Snooping, bridging and Tag VLAN technologies to optimize IPTV streaming. SPI firewall and WPA2 encryption. See more here	Innovation error in 12 months	200,000 VND – 1.4 million VND
TOTOLINK	– Brand: China – Manufacture: China	Multiple devices access high-speed Internet at the same time with MU-MIMO technology. Improve efficiency with Beamforming technology. See more here	Innovation error in 12 months	200,000 VND – 1.5 million VND
ASUS	– Brand: Taiwan – Manufacture: China	Enterprise-grade security – AiProtection is free for life. Connects from 30-40 devices. NitroQAM™ Technology (1024-QAM) – Enables data rates (throughput) to be increased by 25% compared to the old limited standard (256-QAM). OFDMA : divides each channel into subchannels, allowing simultaneous transmission and batching of signals to multiple devices, reducing Wi-Fi latency. Adaptive QoS prioritizes game packets for smoother online play. See more here	Innovation error in 12 months	1.8 – 3 million
Xiaomi	– Brand: China – Manufacture: China	Strong configuration, support connection up to 64 people. Enhance connectivity thanks to the power of Qualcomm CPU. WPA 3 security combined with IPv6 (Internet Protocol version 6). See more here	Innovation error in 12 months	300,000 VND – 1.7 million VND
Tenda	– Brand: China – Manufacture: China	Power is amplified to the maximum, Beamforming+ technology (4X4 5GHz band) and 5 6DBi antennas for outstanding wall penetration. The 28nm 1GHz CPU is equipped with a 500MHz processor.	Innovation error in 12 months	170,000 VND- 1.2 million VND

Purchase policy, warranty of network devices at Tnhelearning.edu.vn

Customers can buy network equipment at Tnhelearning.edu.vn stores or buy online on the website dienmayxanh.com and pay via Visa, Mastercard, JCB cards with simple procedures.

When customers choose to buy network devices directly at the Tnhelearning.edu.vn store chain or buy online (except in the form of Buy online without service), they will enjoy many attractive incentives and genuine warranty policy. As follows:

– Warranty with commitment within 12 months

– Fast delivery to your place

– Refund for defective and non-defective products:

• The first month from the date of purchase: charge 20% of the invoice value
• 2nd to 12th month: charge 10% of bill value per month

– Support guidance and advice via the free hotline 1800.1061 (7:30 – 22:00)

For customers Buy online without service:

– Each phone number can only buy 1 product in 1 month

– Delivery after 24 hours (chargeable)

– Product return policy does not apply

– In case the product has a technical error, the customer should directly contact the manufacturer’s warranty center for support

(Purchase policy, warranty updated on 11/05/2021, may change from time to time. You can see more latest information here.)

Hope you will choose quality network equipment. Please visit the nearest Tnhelearning.edu.vn to visit and shop!

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