Mario Cartoon USB Flash DrivesUsage Tips:1. Ensure there is no virus when you use USB;2. Copy files to computer and them operate files;3. Don't leave USB connected to USB for a long time if you don't use it;4. Do not format USB frequently;5. Delete USB disk on computer before you plug it off computer in case the files damaged or lost.6.  It will get heated when you use USB with UDP chip.Specifications:. Material: PVC. Weight: 20g.Shape: Mario. Certificate: CE FCC ROHS.Writing speed: 4-10 MB/s.Read speed: 10-20 MB/s.Data retention: more than 10 years.USB interface: compatible with USB 2.0.Operating system: works on all main operating system. Limited number for writing cycles: more than 1000,000 times. Warranty: 3 yearsMaintenance: 1. Please put USB on package when you don't use it;2. Use soft cloth or glasses cloth to clean it, do not use water, Ultrasonic cleaner, detergent that contains alcohol; it may cause eternal damages;3. Handle with care if it contains crystal. Do not flap or fall from the sky;4. Do not put USB with Sharpe or tough items, it may get polished5. Keep USB away from water, perfume, soapy, Mothball, cleanser essence, chemical solutions, in case it gets corrosion.6. Keep metal or crystal USB away from sweat, dirty water or High-temperature water-vapor, or its color may shade.