Usb Stick 10 Pieces 4Gb Memory Stick With An Excellent -Performance Ratio For The Classification Of Different File Types.With The Mini Design, You Can Put It In Your Pocket Or In A Small Space, The Foldable Metal 360 Swivel Design Provides Efficient Protection For The Usb Port.Easy To Use, Plug & Work, No Software Or Drives To Install, Just A Simple Plug Into The Usb Port Of A Computer Or Other Device.Lightweight, Easy To Attach To Your Keyring And Easy To Carry. Different Capacities Can Be Selected As Required.Usb 2.0 With Fast Read / Write Speed For Transferring And Saving Various Data On Windows 10/8/7 / Vista / Xp, Linux, Mac Os Compatible With Usb 2.0 And Below (The Standard Format Of The Flash Drive Is Exfat. If You Have Special Requirements Or Come Across Computer Systems Such As Windows Xp Or Mac, Format The Flash Drive In Ntfs Format After Receiving The s So That It Can Read And Write Normally. ).