Interface: USB 2.0 Capacity: 512MB Size: 54 x 16 x 10mm Fast data transfer rate--Read: 15MB/sec & Write: 6 MB/sec. Color:Random Color Material:Metal Easy to carry Hot plug & play Compatible with PC, Notebook, MAC Store your pictures, videos, and songs and any kind of data. Support Windows 7/8/10 ,Windows Vista,Windows 2000,Mac OS X, Linux. Easy to read and read in high speed ,No need drive/power supply only plug in. Package included: 4 x Flash Memory Stick Note: Random color, don't accept the specified color. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.