(Old Model) Seagate Backup Plus Portable Thunderbolt Adapter Take advantage of the revolutionary, high performance speed of Thunderbolt connectivity Tranfers occur at 10Gbps, which is up to 20x faster than USB 2.0 and 12x faster than FireWire 800 Transfer HD movies and other large files in seconds with Thunderbolt's ultra-fast performance The STAE128 turns any Backup Plus Portable Drive into a blazing-fast Thunderbolt device for your compatible computer Completely bus powered, no external power supply needed Connect to the end of a daisy chain of Thunderbolt devices, or directly to the Thunderbolt port on your computer