VGA Cable:

Also known as D-sub cable, analog video cable

Connect one end to the computer monitor, television (PC input port)

Connect the other end to the VGA port on the laptop.

DVI Cable:

Connect one end to the computer monitor.

Connect the other end to the DVI port on the computer.

However, there are 2 types of DVI, DVI-I and DVI-D.
DVI-D does not have the extra pins around the long pin, this is also a pure digital signal over DVI-I.

HDMI Cable:

Connect one end to a computer LCD and the second end to the television.

Connect the other end to the HDMI port on the computer.

If you’re hooking up a television to your computer.

we would recommend that you use an HDMI cable as your PC cable connection.

It can transmit both display and sound. So you can not only use your TV screen as a monitor.

We also make use of your TV speakers to play PC audio.

PS/2 Cable:

Connect one end to the PS/2 keyboard, and PS/2 mouse.

Connect the other end to the PS/2 ports on the computer.

Purple PS/2 port: keyboard
Green PS/2 port: mouse

Ethernet Cable:

Also known as RJ-45 cable

Connect one end to the router, network switch

Connect the other end to the Ethernet port on the computer (see the image below)

Also known as phone connector (since 3.5mm jacks are often found on mobile phones too)

Connect one end to computer speakers, 3.5mm headphones, 3.5mm microphone

Connect the other end to audio ports on the computer (see image below use Green socket)

Green audio port: computer speakers or headphones

Pink audio port:  Microphone

Blue audio port:

MP3 player, CD player, DVD player, turntable, electric guitar, etc (line-in port to play and record sounds from the above devices)

USB Cable:

For USB computer cable connections, there are two popular formats: USB 2.0 and the newer USB 3.0

How to tell USB 2.0 and 3.0 cables apart: USB 3.0 cables have a blue tip, and sometimes you can find an SS “Super Speed” label.

Since USB was intended to be the one computer cable connection to replace them all.

it’s no surprise that the possible uses for a USB port are quite mind-blowing.

For this computer cable guide.

we have listed its more common uses below:

Connect one end to a USB device

Storage devices: USB flash drive, external hard drive external optical drive.

Input devices:

USB keyboard (wired and wireless).

USB mouse (wired and wireless), webcam, scanner, gamepad.

Output devices:

Printer all-in-one office machine, USB speaker.

Wireless adapters:

network (Wi-Fi) adapter, Bluetooth adapter, 3G adapter
Data (and charging) cable for mobile devices such as mobile phones and tablets.

Connect the other end to the USB ports on the computer.

How to tell USB 2.0 and 3.0 ports apart:

USB 2.0 ports have black tips while USB 3.0 ports come with blue tips.

USB 3.0 is backward-compatible meaning that you can connect a USB 2.0 device

The USB 3.0 port and vice versa (but the USB 3.0 devices hooked up to a USB 2.0 port will perform at lowered rates).

There are also USB cables that connect new external backup drives.

Computer Power Cord (Kettle Plug):

Connect one end to the AC power socket

Connect the other end to the power supply unit (see image below), computer monitor

Note: Always turn off your power supply unit (with the 1-0 switch at the back) before connecting a power cord.


Mostly seen on laptops and Apple Macs these cables are high-speed and are capable of carrying Data, video, and other information.

There are 2 current types of Thunderbolt.

The older version of Thunderbolt 2 is seen below but this can also be confused with Mini Display.

The ports look identical and the only visual difference is the picture beside the port.

Thunderbolt 2 (left) has a lightning symbol and carries Data and video.

The Mini Display Port (right) will only carry Video.

And Thunderbolt 3 also known as USB-C on Apple Macs.

Display Port:

Display Port is the best to use if you require a fast.

The cable has better quality than HDMI and is the best option if you have this interface.

Also, the headphones connect with different laptops like Dell laptops, Lenovo laptops, etc for listening to different things.

Main Menu