Senders 10pcs 4GB Usb 2.0 Flash Drive Memory Stick Thumb Storage Pen Disk (Green) Fast data transmission speed Interface: USB2.0 Support USB version 2.0 and 1.0. Support Windows 2000 / XP / Vista / win 7, Mac 9.0 or above Support PC Mode: all brands of PC, Laptop, HP, Dell, Toshiba, etc.