Description: Support 2.5"/3.5" SATA HDD and SSD; 2.5"/3.5" inner diameter HDD; DVD-ROM, CD-ROM, CD-RW, DVD-RW, dvdRW optical drive. Dual headed IDE connectors (40-pin and 44-pin) plus a SATA II connector. Allows simultaneous operation of three HDDs. Data transfer rates up to 5 Gbps, backward compatible with USB 2.0/1.1. A 12V 2A power cable is included for a stable power supply. Plug and play, hot swap; 1 key backup function; on/off switch for HDD protection. LED lights show power and activity status. USB 3.0 to IDE+SATA adapter, USB 3.0 cable, 4PIN power cord, power adapter. Note: The 4PIN power cable is specially designed for 3.5 inch IDE drives, SATA drives are not applicable and unnecessary. Specification: Material: Plastic Specifications: US Power Adapter Size Chart: 8cmx1.8cm/3.15inchx0.71inch Package Includes: 1 Piece SATA/IDE adapter(US Power Adapter) 1 Piece USB3.0 cable 1m 1 Piece IDE 4P cable 15CM 1 Piece 42.5 IDE riser card 1 Piece 12V 2A power supply 1 Piece Instruction manual Note: Please allow slightly errors due to manual measurement and different monitors.