U disk exfat format Unit size allocation

First of all, U disk's default format is FAT32 (FAT32 does not support files larger than 4G), alternatively, you can use the EXFAT format (NTFS partition is a "log" file system, you need to record detailed read and write operations, will be more damage to the flash disk chip, because to continue to read and write. U disk is not recommended to use NTFS partitions.

exFAT is a relatively new format specifically for mobile storage devices, supporting a single file larger than 4GB operation, for allocation unit size can be simply said that the larger the number of units allocated to read and write faster, but the storage space will be wasted.

Here is an explanation of what "allocation unit size" means. The allocation unit size is the smallest unit that the system reads and writes to disks and Removable storage devices. Within the limit speed, the larger the allocation unit size setting the faster the read and write speed, the slower the converse. But there is a problem here, the larger the unit allocation, the more space waste, it's like you take a lot of the same size of square pieces of paper to cover a shape completely, the larger the size of the paper, but compared to smaller pieces of paper, the edge will have more useless area, disk allocation unit is the same reason.

exFAT format when the choice is recommended to use the default value, the system will adjust for you to the most matching default value, without manual management, then choose the Quick format immediately after the effective. Of course, if your daily use of the file is generally larger, then the recommended set a larger, such as 32K or even 64K. This will obviously improve the write speed and, of course, waste more space. There will be lost, speed and space capacity will be your own to coordinate.