4GB Metallic Keychains Style USB 2.0 Flash Disk

1) U disk capacity: 4GB 2) Transfer speed: 8-12M / s (actual speed and computer configuration) 3) U disk interface type: USB 2.0 4) Storage media: flash memory 5) Operating System: General 6) Super quality and high performance 7) USB stable a grade flash chips 8) Color: as picture