Feature: 1. Self Protection: The USB3.0 U disk has self protection, 0 track protection, automatic antivirus, and long service life. 2. Excellent Performance: The U disk is shockproof, moistureproof, resistant to high and low temperatures, and antielectromagnetic interference. 3. Protective Cover: The insert end is equipped with a protective cover, which can protect the USB flash drive well, and the USB flash drive can also be used as a whistle. 4. Characteristic: This USB flash drive is compact in appearance, easy to carry, streamlined appearance, raised face design, simple and fashionable. 5. Plug and Play: There is no need to install driver inside an enclosure, just plug and play, and easy to operate and use. Specification: Item Type: USB3.0 U Disk Material: Zinc Alloy Whistle Volume Decibel: Above 120dB Speed: USB3.0 Status: Write Speed: 40MB/s, Read Speed: 60MB/s (Related to Computer Configuration) Interface: USB Interface, No Driver Required, Plug and Play, Hot Swappable Boot: Support USB ZIP/HDD Boot Power Source: USB Bus Power Supply (4.5V to 5.5V) Data Preservation: Data is Preserved for at Least 10 Years Applicable Models: PCs of Various Brands and Compatible Computers, for Macintosh, for Powerbook, for iBook Operating System: for Win7 8 XP 98 Me 2000, Etc. Working Current: <50mA. Package List: 1 x USB3.0 U Disk Note: The displayed capacity is different from the nominal capacity because the calculation method is different. Manufacturer standard: 1GB=1000MB, 1MB=1000KB. Regarding usable capacity: Please note the memorandum regarding storage product capacity: 4GB=Approx. 3.4GB to 3.8GB, 8GB= Approx. 7.4GB to 7.6GB, 16GB= Approx.14.5GB to 15.5GB, 32GB= Approx. 28GB to 30GB, 64GB= Approx. 58GB to 60GB, 128GB=Approx. 117GB to 124GB, 256GB= Approx. 249GB to 250GB, 512GB= Approx. 498GB to 500GB