6 Common Connection Ports on Laptops and Computers

1. HDMI (High-Definition Multimedia Interface) connection port

Almost all later versions of computers are designed with a direct HDMI port without having to connect to an intermediate cable suitable for the port. Therefore, HDMI is a popular connection port on laptops and computers used by most people.

This connection port is used to transmit images to other projection tools such as: It allows images to be transmitted with quality up to 4K. In addition, not only images and videos can be transmitted, but the sound will also be played in parallel with the image during the projection, to create the most favorable conditions for the user. As long as your laptop or computer has speakers, the accompanying sound will be emitted immediately when the image is projected.

However, there is still a disadvantage of this connection port that it cannot display two screens for the same HDMI port. In addition, there are still old computers that do not have an HDMI port, so you will need a converter from the corresponding connection port of your computer to the HDMI port.

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2. VGA (Video Graphics Array) connection port

One of the most popular connection ports on laptops and computers is the VGA port. It is often used for older computers or large desktop computers. Therefore, for computers with a compact, thin, and convenient design, this connection port is no longer suitable.

Instead, people use HDMI ports to install for laptop computers. Although the image quality of VGA is lower than HDMI ports, it is also standardized up to 1920 x 1200 pixels. This resolution is also considered suitable for normal display frames.

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3. Popular connection port on Laptop, computer - USB Type A

USB Type A is the most used connection port because it not only helps connect external devices such as: computer mouse, USB, keyboard, printer, . to transfer data. Another feature of this connection port that everyone probably loves is that it can charge other devices. Currently, USB Type A can be divided into two types: USB 2.0 and USB 3.0.

For USB 2.0 , it is described as a rectangle with 4 pins inside and is usually white or black depending on the type of machine. This port usually transfers data at a speed of 60 MB/s.

An upgraded version is USB 3.0 , which is shaped like USB 2.0 to differentiate itself. USB 3.0 has superior data transfer speeds, 10 times faster than the old version. For this reason, most people use this version.

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4. USB Type C connection port

A popular connection port on laptops and computers that is upgraded compared to USB type A is USB Type C. Although this connection port is still new, it has been integrated into Macbook lines or smartphones. The purpose is to become a widely used connection port and replace the two previous old versions. Its convenience is that the size of the port is quite small, suitable for thin, light and advanced lines of computers.

In addition, the improvement in data transmission speed of USB Type C is also much better than USB 3.0 (speed almost doubled). A highlight in the design of this connection port is the structure of the two jack ends are the same. You can use any end to plug in without having to consider and learn like with USB Type A.

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5. Thunderbolt 3 Protocol

Thunderbolt 3 is a protocol that is developed in a comprehensive direction in both image quality and data transmission speed. It is considered perfect and meets the needs of consumers the most. This protocol does not create its own connection port but is used with USB Type C to optimize convenience.

With a transmission speed of nearly 5GB/s, it can meet the requirement of transmitting both screens on the same port. Superior to the above mentioned connection ports, the speed is nearly 4 times faster than USB Type C and the image quality can reach 5K standard. This is considered a popular connection port on Laptops and computers with the most outstanding features today.

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6. RJ-45 LAN connection port - Popular connection port on Laptops and computers

Although, Wifi network is widely used on laptops and computers in recent years. However, there are still places where it cannot be caught or the network is too weak to be used. The RJ-45 LAN connection port is the port that directly connects the device to the wired network system, and it is considered the solution for these cases.

This port can display images and computers with quite good quality. In addition, there are fewer cases of connection congestion due to network problems compared to Wifi. Therefore, for those who have desktop computers or have difficulty catching Wifi, they should use the RJ-45 LAN port to perform tasks.

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Kareem Winters

Update 17 January 2025