1) U disk capacity

2) Transfer speed: 10-24M / 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?

9) It's great gift to your friends?

10) Necklace Length: 58cm