4GB USB Flash Drive 10 Pack, Cardfuss USB Drives 4GB Memory Stick Swivel 10 Gig Flash Drives 4GB USB 2.0 Pendrive, Thumb Drives 10 Pack, Zip Drive, Jump Drive -Mixed Colors-

Specifications Writing Speed: 3MB/S-8MB/S Reading Speed: 12MB/S-15MB/S Interface: USB 2.0. Backwards compatible to USB 1.1 Chip: Grade A, original brand, repeatedly for 100,0000 times. Operating Temperatures: 32? - 140? ( 0? - 60? ). Storage Temperatures: -4? - 185? ( -20? - 85? ). Storage Lifetime: More than 10 years. Durability: The Cardfuss USB flash drive has tested more than 1000 times to read and write. Compatibility: Desktop, laptop, Mac, tablet, speakers with USB port and devices with USB interface. Operating System: Windows 7 / Vista / XP / 2000 / ME / NT, Linux and Mac OS.When the USB drive is working, the red LED is displayed. Single Dimension ( Folded ): 2.17 x 0.75 x 0.39 in Package Included 10 x 4GB USB Flash Drives (Mixed Color) 10 x Lanyards (Mixed Color)