Specifications: The USB 3.0 to ide/sata hard drive adapter support SATA 2.5"/3.5" HDD; 2.5"/3.5" IDE HDD, DVD-ROM, CD-ROM, CD-RW, DVD-RW, DVD + RW Optical Drive; It can support the simultaneous connection of 2 HDDs for retrieve old files, backup, cloning and upgrade for a speedy transfer - IDE Source+SATA2 Target; SATA1 Source+SATA2 Target