Blue and White Porcelain Series 4GB USB Flash Disk

1) U disk capacity: 4GB 2) Transfer speed: 4-6M / s (actual speed and computer configuration) 3) U disk interface type: USB 2.0 4) Storage media: flash memory 5) Operating System: General 6) Color: white 7) Weight 20g 8) Size: 52mm x 20mm x 8mm