Hello Kitty Cartoon USB Flash DrivesNotice before use:1. Real capacity on computer is less than the said capacity from supplier because supplier count on 1000 while computer count on 1024 when converting from GB to MB. Real capacity is about 90% of the said capacity.2. The biggest capacity of a single file that using on the default FAT32 system is 4gb, if you want to store single file over than 4gb, such as high-definition videos, we suggest you format the usb to NTFS or FAT format. Steps as follow:●Connect the usb to your computer;●Right-click usb and choose Format● Choose NTFS or FAT format.●Click start.Specification: materialPVCShapeHello kittyWeight20gcolorPink, blue, yellow, purple, redCertificateCE FCC ROHSPackagePoly bag or gift boxWriting speed3-10 MB/sRead speed10-20 MB/ sData retentionMore than 10 yearsFeatures:1. Store capacity: 128MB, 256MB, 512MB, 1GB, 2GB, 4GB, 8GB, 16GB, 32GB, 64GB;2. USB 2.0 & 1.1 compatible, hot plug and play;3. No external power needed;4. Service: Non-Erasable, Auto running, Encryption, Custom Icon Creation, Locked / Hidden contents5. Limited number of writing cycles: more than 1000,000 times.6. Applications: Corporate gifts, business gifts, Promotional gifts, Personal needs,  Advertisement, Resell, etc;