VANTEC CB-ESATAU3 NexStar eSATA to USB 3.0 Adapter Changer Type: USB to eSATA Specifications: Supported Devices: eSATA External Interface: USB 3.0 (Backwards Compatible With USB 2.0 & 1.1) Material: Plastic System Requirements: Microsoft Windows XP/Vista/7 (32 or 64 Bit) Mac OS X v10.4 and Up USB 1.1 or 2.0 or 3.0 Equipped System For USB 3.0 Speeds, System Must Support USB 3.0 Specifications Package Contents: NexStar eSATA to USB 3.0 Adapter, Installation Guide