How to choose USB Flash Drive

Define needs

There are many scenarios for using USB Flash Drive, first you need to define your needs and choose one that suits your needs by describing the following common scenarios.

• Regular storage service: This is the basic usage scenario of USB Flash Drive, if there is no special demand, most of the USB Flash Drive in the market can meet it.
• Business gifts: This is also a scenario where the USB Flash Drive is often used, and by customizing the logo on the USB Flash Drive, we can promote our company or brand very well. The USB Flash Drive can be used to store more promotional information in advance, so that customers can understand it in detail.
• Secure Data Storage: Store private data that needs to be encrypted. In addition to the high requirements of the USB Flash Drive hardware itself, it also requires responsive software to achieve a high level of secure storage requirements.

Interface

Capacity

Early limited by hardware technology, flash drive storage capacity is still very small. 1998 usb1.1 standard was established, it is widely believed that the flash drive has emerged, the capacity between 8MB-32MB, after the rapid development of technology, flash drive storage capacity has soared, the development of the current 1tbU disk is also visible everywhere.

Why is the nominal storage capacity of USB flash drives less than the actual storage capacity?

• Storage device manufacturers use decimal calculation method for calculation convenience, is 1000 (103) for the conversion unit, that is, 1GB = 1000MB; while the computer uses binary, the system is 1024 (210) for the conversion unit, that is, 1GB = 1024MB. So the capacity of the USB flash drive identified by the computer is less than the capacity of the USB flash drive manufacturer's label, the actual capacity is about 90% of the labeled capacity. Therefore, the actual capacity of all USB flash drives is less than the labeled capacity, generally speaking, 8G is about 7.45G, 16G is about 14.9G, and so on.
• Because the smallest unit of storage is the byte (Byte) Take a 16G USB flash drive as an example, the calculation is as follows.
• The manufacturer calculates the capacity as follows: 16GB=1610001000*1000Byte=16000000Bytes
• The actual capacity of the computer calculation is : 16000000/1024/1024/1024=14.9012GB Here the difference arises in the calculation.
• Due to the production process, USB flash drives can generate bad blocks during the production process, which causes the loss of storage capacity.
• Finally, the use of the USB flash drive itself requires a responsive program to execute, which also takes up a small amount of storage capacity. In the case of some custom USB flash drives, the manufacturer will also write more programs according to the customer's needs, which will again take up the storage capacity of the USB flash drive.

Appearance

The appearance of the USB Flash Drive will generally vary depending on the case material.

• Alloy material:
• Plastic material:
• Wooden material:
• Silicone material: