High Speed USB Flash Drive 3.0 Metal 32G, 64G U Disk  
Brand: Teclast
Article number: Edge high speed 3.0
Model: Sharp
Data transfer rate 50 (MB / s)
Reading speed 50 (MB / s) Write speed 20 (MB / s)
Interface: USB 3.0
Shell material: metal
Write-protect switch stand by
Characteristic Waterproof and shockproof
Product Size: 56.2 * 20 * 10.3mm
Weight: 11.6（g）
Color: Gray
Capacity: 32GB, 64GB
Customization: Metal USB flash drive
USB connection.
Support Plug & Play.
No external power supply .
Support different types of os.
Solid State Storage, Shock proof and electromagnetic proof.
Capacity flash memory products are usually shipped in accordance with 1MB = 1000KB, 1G = 1000MB computing, but the operating system using binary arithmetic 1MB = 1024KB, 1GB = 1024MB, so there are some differences between the display capacity and standard capacity memory products.This is calculation difference between manufacturer and our PC
16GB = approximately 14GB-15GB
32GB  = approximately 28GB-30GB
64GB = approximately 58GB-60GB
128GB = approximately 110GB-120GB
256GB = approximately 230GB-240GB
512GB = approximately 460GB-470GB
1TB= approximately 915GB-925GB
The calculation maybe difference between manufacturer and your PC, please Google "USB Flash Drive Capacity" to get more information.    
Package: Teclast Sharp USB Flash Drives USB 3.0