How many connection methods are there for wireless keyboards? (USB receiver connection (wireless 2.4g), bluetooth connection, wi-fi connection, infrared connection)

What are the connection methods for wireless keyboards?

The wireless keyboard has the following connection methods:

1. Connect via USB receiver (wireless 2.4g): The wireless keyboard is connected to the computer through the USB receiver, which generally needs to be inserted into the USB port of the computer, and then communicate with the keyboard through wireless signals.

2. Bluetooth connection: The wireless keyboard is connected to the computer or other devices via Bluetooth, and the Bluetooth function needs to be turned on on the computer or device and paired.

3. Wi-Fi connection: Some high-end wireless keyboards support Wi-Fi connection, which can be connected to computers or other devices via Wi-Fi, and the corresponding Wi-Fi network needs to be connected to the computer or device.

4. Infrared connection: A small number of wireless keyboards support infrared connection. You need to enable the infrared function on the computer or device, and point the keyboard at the infrared receiver for communication.

Advantages and disadvantages of each connection method

Each connection method has its advantages and disadvantages, and there is no absolute good or bad. Which connection method to choose mainly depends on your needs and usage scenarios. Here are the pros and cons of each connection method:

1. USB receiver connection: This connection method is simple and convenient, and it can be used after plugging in, without complex pairing operations (it still needs to be paired at the beginning, and it does not need to be paired for subsequent use). But it needs to occupy the USB interface of the computer. If your computer interface is not enough, it may cause inconvenience.

2. Bluetooth connection: Bluetooth connection can realize simultaneous connection of multiple devices, does not need to occupy the USB interface of the computer, and can be connected within a relatively long distance. However, you need to turn on the Bluetooth function on the computer or device and perform pairing. The pairing process may be cumbersome.

3. Wi-Fi connection: Wi-Fi connection can achieve a longer distance connection, and can connect to other devices in the LAN, which has stronger versatility. However, you need to connect to the corresponding Wi-Fi network on the computer or device, and you may need to enter a password and other operations, which is not as convenient as other connection methods.

4. Infrared connection: Infrared connection needs to turn on the infrared function on the computer or device, and point the keyboard at the infrared receiver for communication. The communication distance is short, and the line of sight between the keyboard and the receiver needs to be kept unobstructed, so it is not convenient to use.

Generally speaking, USB receiver connection and Bluetooth connection are the two most widely used connection methods at present. They both have their own advantages and disadvantages. Which connection method to choose mainly depends on personal needs and usage scenarios.