【Universal SATA/IDE Hard Drive Adapter】: EYOOLD USB 3.0 to IDE and SATA converter external hard drive adapter supports all 2.5/3.5 inch IDE HDD, SATA HDD/SSD drives, DVD-ROM, CD-ROM, CD-RW, DVD-RW, DVD + RW Optical Drive; connect your SATA / IDE device to your computer through a USB port as an additional external hard drive via USB 3.0, read data easily | 【Allowed to Operate 3 HDDs Simultaneously】: It has a SATA connector and two IDE connectors (40pin and 44pin), support 2 IDE hard drive and 1 SATA hard drive connecting simultaneously, USB 3.0 enables data transfer rates of up to 5Gbps, backward compatible with USB 2.0/1.1, Allow you realize data back via one-touch operation. Easy transfer data or files between three hard drives | 【Huge Capacity Supportive】: Support capacity of SATA hard drive up to 6TB, This is a perfect tool to duplicate, copy, backup, or transfer a large amount of data from one drive to another, your wonderful companion for the office, home | 【Plug and Play】: Quickly connect 2.5/3.5 inch SATA/IDE HDD to a USB port, Drive-free for Windows 10/7/2000/XP/Vista, Linux, Mac OS, etc. Support hot-swapping. On/off switch for HDD protection. The LED indicator of the USB to IDE/SATA adapter can monitor the working state | 【Power Adapter Supplied】: Including a 12V 2A, DC power adapter ensures 2.5"/3.5" SATA HDD can be connected well, especially for 3.5" IDE HDD, which necessarily requires the power adapter for a stable connection. Note: 4PIN Power Cable is designed for 3.5’’ IDE drive, SATA drives are not applicable and unnecessary