2x Port eSATA and 1x 4pin Power with PCI Metal Bracket to 2 SATA cable. It's used for Computer connection 2.5inch 3.5inch External Hard Drive. Converts internal SATA port into external ESATA port. SATA Bracket upports PC computer with one 32-bit PCI slot. Works with all ESATA interface devices such as ESATA and so on. Works with all SATA interface device such as SATA Hard Disk, SATA , SATA CD-ROM and so on. Type: Cable Adapter Model Number: SATA to eSATA color:Photo color Material:Plastic + Metal Package Contents: 3 x Dual SATA to 2 Ports eSATA + 4 Pin IDE Power PCI Bracket Slot Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.