With the advancement of technology, many things can be obtained through the Internet. One such tool is the USB flash drive, which is not only small but also easy to carry and use.

1: The principle of 4-in-1 OTG

Four-in-one OTG is a multifunctional USB flash drive, which can store files on the computer hard drive or mobile hard drive. It can also be used in devices such as cell phones, tablets and laptops. Principle of 4-in-1 OTG:4-in-1 is a high-capacity USB flash drive that is equipped with multiple USB ports inside that can be connected to various hardware. Two of the USB ports are: a "direct" USB port for connecting to an external hard drive and a "flash" USB port for connecting to an external hard drive. The 4-in-1 is a widely used USB flash drive because it has some unique features: 1. The design of the 4-in-1 OTG makes it possible to quickly transfer files without having to put them in the computer's memory or hard drive. 2. The 4-in-1 OTG also has a certain backup function, which prevents the loss of important data.

It has a unique structure designed to effectively prevent information leakage or theft; in addition, it provides support for a variety of formats such as .rar, .zip and .gz. How to use 4-in-1 OTG: 

1. Store data in a separate hard disk; 

2. If you need to store a large amount of content, make sure you have the appropriate software or driver installed; 

3. Connect to your computer and run its relevant commands to easily read all the data in it.

2: Usage and advantage analysis

4-in-1 OTG is a portable multifunctional USB flash drive, mainly used for storing files and data. It has an independent hard drive, which can be easily managed. Usage and advantage analysis: 1. 4-in-1 OTG integrates multiple flash memories together to easily and quickly read, write or copy files from USB ports with just one button. 2. 4-in-1 OTG has a large capacity to meet the needs of a large number of users. 3. 4-in-1 OTG uses the latest technology for more powerful performance and can quickly transfer files from cell phones, computers and cameras. 4. Four-in-one OTG supports a wide range of file formats.