What is the best allocation unit size for a USB flash drive
U disk format allocation unit size is generally 4096 bytes is more appropriate, the general default is also 4096 bytes, that is, 4K.
Nowadays, the U disk is a storage capacity is relatively large, so the general default choice of the [NTFS] format, because the NTFS format supports a single file of 4G or more.
If your USB flash drive is a small 4G or 8G USB flash drive, you can choose [FAT32] format.
If you have a big USB flash drive and want to store some compatible files, you can use EXFAT format.
When you format the USB flash drive, you can choose to allocate the unit size. This will determine the size of the smallest unit, called a cluster or sector, in which the USB drive will store data. Different unit sizes are suitable for different purposes, so you should choose a size that suits your needs.
The following are common cell size options and uses:
1. Default: If you are unfamiliar with cell sizes, it is recommended to format using the default values.
2. 4096 bytes: This is a newer formatting cell size suitable for use with large files such as videos and images. This cell size reduces fragmentation and improves performance.
3.2048 bytes: This cell size is suitable for smaller files and documents.
4. 512 bytes: This is an obsolete cell size, usually used for older hard drives. For USB flash drives, this option is less relevant.
So you need to consider your actual needs when choosing a formatting unit size and select the option that best suits your needs.
What does it mean to format a USB flash drive with an allocation unit size?
The allocation unit is the smallest unit of a file stored on the flash drive.
Because the average file is larger than this minimum unit. So the files stored in the USB flash drive are divided into chunks according to this unit.
If you store small files, you can set the individual cells to be smaller, such as 16K or 128K (for large capacity movies). However, it is usually only necessary to set it to the “default configuration size”, which may cause the usb flash drive to not recognize it if you modify it.
The details are as follows:
1.If you only store small files such as songs or documents, you can set the individual cell to a smaller cell, such as 16K.If it is for a large capacity movie, you can set it to 128K, but you usually only need to set it to the “default configuration size”. “.
2. Based on the size of this allocation cell, the USB flash drive storage files are divided into several blocks and stored on the disk. If each block is smaller, the transfer speed will be slower, but it will take up fewer blocks. On the other hand, if each block is larger, the transfer speed will be faster, but it will take up relatively more space.
The biggest advantages of USB flash drives are that they are small and easy to carry, have a large storage capacity, are inexpensive, and are reliable.USB flash drives are very small in size, only about the size of a thumb, and are extremely light in weight, generally around 15 grams, which makes them especially suitable for carrying around, so that we can hang them on our chests, dangle them from our keychains, or even put them in our wallets.
The general capacity of USB flash drives are 2G, 4G, 8G, 16G, 32G, 64G (1GB is no longer available, because the capacity is too small), in addition to 128G, 256G, 512G, 1T and so on.
Prices for the most common 8GB, for example, can be bought for about 20-40 dollars, and 16G for about 50 dollars. There is no mechanical device in the flash disk, which makes it extremely shock-resistant. In addition, the flash disk is also moisture-proof and anti-magnetic, high and low temperature resistance and other characteristics, safety and reliability is very good.