Usb Flash Drive Creative Cartoon Condoms Model U Disk 2.0 Pen Drive Waterproof Usb Stick 4GB 8G 16G 32GB 64G 128G 256GB PendriveFeatures:Supports hot plug & play, High speed USB 2.0 portNo physical drive requiredPlug-and-play; no external power supply required, USB bus-poweredSupport all current computer systemsspeeds vary depending on types of file being transferred and computer configuration.Write Rate:3-10 Mb/SInterface USB 2.0Excellent USB Memory stick in excellent conditionAbout capacity:4GB=approximately 3.6GB-3.8GB8GB=approximately 7.4GB-7.6GB16GB=approximately 14.4GB-15.8GB32GB=approximately 28.5GB-30GB64GB=approximately 57GB-60GB128GB=approximately 110GB-120GBVendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MBCalculated, operating system with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB;So there are some differences between display capacity and nominal capacity of flash memory productsWarm Tips:We always sell life-size flash drives, do not deceive buyers, maintain high quality, for global buyers.To avoid data loss or mechanical damage, do not power down your computer or unplug flash disk during transfer.Please do not remove your USB flash drive when it is being used otherwise your data may loss.After using USB flash drive, it is better to remove it as soon as possible. That will helps to extend its storage lifetime.Please do not format your USB flash drive frequently, otherwise the USB will be damaged easily.