Possible reason : You may have used your USB drive or Memory card on a device that doesn’t support storages larger than 32GB or exFAT/NTFS format, or the device was automatically or manually formatted into 32GB or FAT32. Therefore the capacity only shows 32GB on your windows OS. How to recognize? Right click “This PC”-> “Manage”->”Disk Management” to check the partition of capacity. E.g. A 128GB USB flash drive only shows 32GB on WINDOWS. 116.13GB* online: Which means the drive is at normal 128GB capacity. * Part of the capacity of FLASH storage products will be used for formatting or other functions, therefore the displayed capacity in the operating system will be less than the actual storage capacity due to unit conversion. It is recommended to calculate the actual storage capacity based on this equation: total bytes/1024/1024/1024. Primary partition 32GB: Which means only 32GB was set. Unallocated capacity 84.12GB: Which means there is still 84.12GB unallocated. How to solve it? a. Right click to delete 32GB volume on “Disk Management” and reformat it. (Backing up your files is suggested.) b. Right click to create new volume and follow the default format and finish the format. c. Finish format. Check the capacity.
This is due to a unit capacity conversion issue. Hardware manufacturers usually define 1K=1000 bytes according to decimal, while software providers (ex: Microsoft) define 1K=1024 bytes according to binary. In addition manufactures retain 3~5% of capacity for firmware, application software, and data storage maintenance. So there is the difference between actual capacity and marked capacity.
The data transfer rate is different. USB1. around 187.5KB/Second USB1.1 around 1.5MB/Second USB2.0 around 60MB/Second USB3.0 around 500MB/Second USB3.1 up to 1000MB/Second
It is the problem of the FAT system. Most manufacturers formatted the USB disk in FAT file system. If you copy over 255 files to the USB disk at the same time, you can create a new folder or directly re-format the USB disk to FAT32 or exFAT. However, only the FAT format is compatible with most operating systems.
FAT 16 file formats can only support 2 GB size for a single file, and FAT32 file format can only support 4 GB size for a single file, so the NTFS or exFAT file format must be used instead for file sizes larger than 8 GB (including 8 GB). Please verify your file system format in advance.
The "Stream Loss" error message usually occurs as data is transferred from a storage device of NTFS format to a Flash drive of FAT or FAT32 format. Generally speaking, such"Stream Loss" message will not result in data damage or miss, so that you can continue without worry. This error message is generated due to automatic generation of "Thumbs.db" file in a folder because of NTFS format. Such error message will not occur by deleting "Thumbs.db" file before copying the folder.
According to the latest USB-IF specification that announced in 2019. SuperSpeed USB 3.2 Gen1(5Gbps) is equal to the past USB 3.1 Gen1 and USB 3.0 specification. And SuperSpeed+ USB 3.2 Gen2 will rise from Gen2 by 1(10Gbps) to Gen2 by 2(20Gbps).