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What's the difference between a mobile hard disk and a USB flash drive? Which one is better?

Mobile hard disk and USB flash drive are common portable storage devices. Today we will discuss the differences between them and how to choose.

Advantages and disadvantages of mobile hard disk Advantages:

Large capacity: Mobile hard disk usually has a large storage capacity, which can provide hundreds of GB or TB of storage space.

Long life: Compared with U disk, mobile hard disk usually has better durability, more stable internal mechanical structure and is more suitable for long-term use.

Data transmission speed: Due to the use of 2.5-inch or 3.5-inch hard disks, mobile hard disks usually have high data transmission speed and are suitable for transmitting large files. USB? The theoretical transmission speed of 2.0 interface can reach about 60MB/s, and the file transmission is very fast.

File organization: it can organize a large number of files and folders conveniently, and is suitable for backing up and storing a large number of audio-visual materials.

disadvantaged

Larger: Compared with USB flash drives, mobile hard disks are usually larger and inconvenient to carry.

Need an external power supply: Most mobile hard disks need an external power supply, so in some scenarios, you may need to bring an extra power adapter.

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The price is relatively high: compared with the capacity of the mobile hard disk, the price is usually higher.

Advantages and disadvantages of u disk

Portability: USB flash drives are usually very small and portable, and can be placed on a key chain, in a pocket or hung on a wallet.

No need for external power supply: U disk is powered by USB interface, and no additional external power adapter is needed.

Suitable for small file transfer: U disk is suitable for small file transfer and temporary storage, such as documents, photos, music, etc.

The price is relatively low: U disk with the same capacity is usually cheaper than mobile hard disk. If it is simply used, the U disk is more cost-effective.

disadvantaged

Limited capacity: Generally, the storage capacity of U disk is relatively small, and the maximum capacity may be in the range of several hundred GB, and a few high-end models can reach several TB.

Short service life: compared with the hard disk of mobile hard disk, the flash technology used in U disk has a short service life and is easy to be damaged by frequent reading and writing.

Slow speed: Compared with the mobile hard disk, the data transmission speed of U disk is usually slow, especially when dealing with large files.

Which is better depends on the specific use.

If you need large storage capacity, you want to back up a large number of audio-visual materials and large engineering documents. And you don't need to carry it often, then mobile hard disk is a better choice.

Photographers often need to back up a large number of high-resolution photos and videos, and the mobile hard disk can provide sufficient capacity and faster transmission speed.

Software development or multimedia editing often needs to store large-capacity project files (videos, code files, databases, high-definition pictures, etc.). ), and often need to use immediately. At this time, the capacity and transmission speed of storage devices are required, and the mobile hard disk is more suitable.

If you need a portable and frequently carried storage device, which is mainly used for the transmission and temporary storage of small files, or when you need to move files quickly, then U disk is a better choice.

Students often need to bring courseware, documents and some small software. The portability and relatively low price of U disk are very suitable for this situation.

Daily office needs meetings and document sharing. These documents have few contents and need to be carried frequently. A USB flash drive would be more suitable.

According to my own experience, I am a student party, and most of the scenes I need are storing courseware, defending PPT, recording, printing files and so on. So for me, a USB flash drive will be more suitable for me. Compared with the huge volume of mobile hard disk, it is easier to carry, just put it in your pocket (it can also be used as a key chain). And because the files I transmit are generally not more than 200M, it is acceptable not to have a fast transmission speed. Most importantly, with the development of science and technology, storage devices such as USB flash drives have become much cheaper, while hard disks may have to buy an adapter because of their complex internal structure, so they will be more expensive in terms of price budget. So to sum up, I think that if there is no professional demand for large storage and high-speed transmission, ordinary U disk can meet most of the needs of ordinary people.

However, mobile hard disk and USB flash drive have their own advantages, and which one is better depends on your specific needs and usage scenarios. If the budget allows, you can also have a mobile hard disk and a USB flash drive at the same time, so as to use them flexibly in different situations.