... shape usb flash drive 3.material:metal,crystal 1/2/4/8/16/32/64GB Jewelry USB Flash Drive Storage ... 20MB/sec. Read 10-12MB/sec. and write2.5-4 MB/sec.Auto-run, Space partition, Password Protection and ... 16GB, 32GB, 64GB,128GB……Transfer Rate:Hi-Speed USB 2.0 CertifiedCompatibility:PC or Mac with a USB interface.Operating ... Transfer Speed:10MB/s-15MB/s for read. 2.5MB/s-5MB/s for write.Power:No external ...