Details1. USB capacity: 4GB 8GB 16GB 32GB 64GB 128GB2. Interface type: USB2.03. Working temperature: 0~504. Wirtten speed: 3MB~8MB/sec5. USB connection; support plug and play6. No drive/power supply; just plug inAbout capacity:1GB = about 870MB-921MB2GB = about 1.7G-1.8GB4GB = about 3.4GB-3.6GB8GB = about 6.8GB-7.2GB16GB = about 13.6GB -14.4GB32GB = about 27.2GB -28.8GB64GB = about 54.4GB -57.6GB128GB=about 108.8GB-115.2GBnote:The vendor is using flash decimal arithmetic: 1 MB = 1000KB; 1G = 1000 MBCalculated operating system with binary algorithm: 1 MB = 1024KB; 1 GB = 1024 MB;If you have any questions; please feel free to contact us. We will do our best to solve all problems and provide you with the best customer service.If you are satisfied with the USB flash drive; please give us 5 stars; thank you very much<img data-srcid="-" src="https://image.doba.com/dgd1-lEDgdFuivobB/christmas-cartoon-usb-flash-drive-usb20-flash-drive-64gb-memory-stick-pen-drive-christmas-gift.jpg" alt="dropship Christmas cartoon USB flash drive USB2.0 flash drive 64GB memory stick pen drive Christmas gift" /><img data-srcid="-" src="https://image.doba.com/dgd1-dpDBIeuvbJva/christmas-cartoon-usb-flash-drive-usb20-flash-drive-64gb-memory-stick-pen-drive-christmas-gift.jpg" alt="dropship Christmas cartoon USB flash drive USB2.0 flash drive 64GB memory stick pen drive Christmas gift" /><img data-srcid="-" src="https://image.doba.com/dgd1-lIVdSQpmvobg/christmas-cartoon-usb-flash-drive-usb20-flash-drive-64gb-memory-stick-pen-drive-christmas-gift.jpg" alt="dropship Christmas cartoon USB flash drive USB2.0 flash drive 64GB memory stick pen drive Christmas gift" /><img data-srcid="-" src="https://image.doba.com/dgd1-dmqvlCkibJDg/christmas-cartoon-usb-flash-drive-usb20-flash-drive-64gb-memory-stick-pen-drive-christmas-gift.jpg" alt="dropship Christmas cartoon USB flash drive USB2.0 flash drive 64GB memory stick pen drive Christmas gift" /><img data-srcid="-" src="https://image.doba.com/dgd1-NsDSdQkZqYvW/christmas-cartoon-usb-flash-drive-usb20-flash-drive-64gb-memory-stick-pen-drive-christmas-gift.jpg" alt="dropship Christmas cartoon USB flash drive USB2.0 flash drive 64GB memory stick pen drive Christmas gift" /><img data-srcid="-" src="https://image.doba.com/dgd1-IBVPNeujDYbA/christmas-cartoon-usb-flash-drive-usb20-flash-drive-64gb-memory-stick-pen-drive-christmas-gift.jpg" alt="dropship Christmas cartoon USB flash drive USB2.0 flash drive 64GB memory stick pen drive Christmas gift" /><img data-srcid="-" src="https://image.doba.com/dgd1-NVvtdepjbJDT/christmas-cartoon-usb-flash-drive-usb20-flash-drive-64gb-memory-stick-pen-drive-christmas-gift.jpg" alt="dropship Christmas cartoon USB flash drive USB2.0 flash drive 64GB memory stick pen drive Christmas gift" /><script>window.adminAccountId=239234800;</script>