We Offer USB 3.0 Portable Solid State Drive.Specifications Capacity 64GB, 128GB Size 98.7mm 65.7mm 17.45mm Weight 70g Storage Media MLC NAND Flash memory Operating Voltage DV 5V Operating Temperature 0C(32F) to 70C(158F) Certification CE, FCC, BSMI Performance Read up to 260MB/s, Write up to 140MB/s *Note: Speed may vary due to host hardware, software and usage