Wood Meets Color Handmade Wood Flash Drive USB 3.0 16GB 32GB 64GB (16GB, Beech) USB 3.0 FLASH DRIVE: Read Speed up to 100MB/s, Write Speed up to 20MB/s;USB 3.0 has transmission speeds of up to 5 Gbit/s, which is about ten times faster than USB 2.0 (480 Mbit/s) (References: https://en.wikipedia.org/wiki/USB_3.0) SOME FACTORS MAY AFFECT THE SPEED OF USB DRIVE: the speed of hard disk, the USB connector COMPATIBILITY: USB 3.0 and USB 2.0; Can be used in USB 2.0 connector but the speed is same as USB 2.0 ( One of differentia is the color of USB slug: USB 3.0 is blue, 8 pin; USB 2.0 is black, 4 pin) GOOD AND SPECIAL GIFT FOR COLLEAGUES, FRIENDS AND CLASSMATES 100% REAL WOOD (beech and walnut) and REAL COWHIDE;100% HANDMADE AND UNIQUE DESIGN; Every WOOD item is not same as picture