1. USB (Univeral Serial Bus) Version 2.0 Compliant2. SATA II (Serial ATA II) Version 1.0a Compliant3. USB Mass Storage Class Bulk-Only Transport Specification Compliant4. Dual-Head IDE Connector (40pin and 44pin) plus one SATA II Connector5. Support IDE/SATA HDD 1TB, 2.5" / 3.5" HDD, 5.25" CD/DVD-ROM, CD-RW, COMBO, DVD-RW, DVD-RAM6. Operates with one IDE and one SATA HDD Simultaneously7. Support Plug and Play8. Data Transfer Rate: 480Mb/s(Max), 52X CD recording , 16X DVD recording9. External Power Supply Provided: 100V~~240V AC, 50HZ/60HZ, 3C/UL/CE Certificated