Ventisonic SATA/PATA/IDE Drive to USB 2.0 Adapter Converter Cable for 2.5 / 3.5 Inch Hard Drive / 5 inch Optical Drive with External AC Power Adapter Supports SATA Hard Disk / ATA/ATAPI CD-ROM/R/RW DVD-ROM (based on ATAPI spec.) Connect to the IDE device using USB interface and SATA device too Transfer rate upto 480MBps (USB 2.0 specification), limit depend on the IDE device/SATA device and the driver External power adapter included, for power up the 5V/12V IDE/ATAPI devices Usage For easy connect to the IDE device / SATA device and make the hard disk device more portable