Exmapor 5PCS 4GB USB Flash Drive Bulk Storage Memory Stick Pen Drives with LED Indicator(Red/Black/Silver/Green/Blue)Specifications: Chip: Grade A Interface: USB 2.0 and USB 1.0 Writing speed: 3mb/s-7mb/s Reading speed: 8mb/s-18mb/s Compatibility: Desk PC, Laptop, Mac, Tablet, Speakers with USB port Operating System: Windows 7/8/10/Vista/XP/2000/ME..

Exmapor 5PCS 1GB USB Flash Drive Bulk Storage Memory Stick Pen Drives with LED Indicator(Red/Black/Silver/Green/Blue)Specifications: Chip: Grade A Interface: USB 2.0 and USB 1.0 Writing speed: 3mb/s-7mb/s Reading speed: 8mb/s-18mb/s Compatibility: Desk PC, Laptop, Mac, Tablet, Speakers with USB port Operating System: Windows 7/Vista/XP/2000/ME/NT/9..