Seagate GoFlex Desk Thunderbolt Adapter (STAE122) Works with any GoFlex Desk Drive Upgrade your interface for faster file transfer performance Compatible with Thunderbolt displays and data devices Dual ports supports daisy-chaining for 6 devices 10 Gbps Thunderbolt port System Requirements: GoFlex Desk Drive, Mac OS X operating system 10.6.8 or higher, Available Thunderbolt port & Thunderbolt cable Inside the Box: GoFlex Desk Thunderbolt adapter, power supply, quick start guide