USB 2.0/eSATA to Dual SATA with HDD-to-HDD Backup No PC Required! One-Touch Backup - Supports up to 2 Terabytes! Connect two SATA drives to your PC with this ADA-2022B USB 2.0 & eSATA dual SATA adapter. The ADA-2022B supports two SATA drives and lets you connect to a PC using either an eSATA connector or USB 2.0 connector. You can use the OTB (One Touch Backup) function to backup your data onto two SATA hard drives at the same time! Using the eSATA connector you can get a speedy transfer rate of up to 3 Gbp/s or use the USB 2.0 connector for a transfer rate of up to 480 Mbps. The ADA-2022B features a clone function which enables you to clone two SATA hard drives without the use of a PC! Order today!   Features/Specifications: USB 2.0 & eSATA to Dual SATA Adapter   General Features: USB 2.0 interface and eSATA interface (one on each end) USB 2.0 transfer rate: up to 480 Mbps eSATA transfer rate: up to 3 Gbp/s Two (2) SATA connectors (on side) Supports two (2) SATA drives Supports up to 500 GB 2.5-inch hard drive Supports up to 2 TB 3.5-inch hard drive Bus powered supported for a single 2.5-inch hard drive External 12V power needed for two hard drives connected at same time (power adapter included) One-touch backup (OTB) function supported for two hard drives at the same time Lead-free   Regulatory Approvals: RoHS FCC CE Package Includes: USB 2.0 & eSATA to Dual SATA Adapter OTB software (on 3-inch CD) Power Adapter (100-120V) Power cord USB cable User Manual Additional Information: Notes: Model: ADA-2022B   Requirements: Available USB port eSATA cable (for eSATA use) Available eSATA port Windows 2000/XP/Vista/7 Mac OS 9.X Linux CD-ROM drive