StarTech.com 1ft Low Profile SATA to eSATA Plate Adapter - eSATA Slot Bracket - Low Profile SATA to eSATA Bracket (ESATAPLT1LP) - SATA internal to external panel - 30 cm

Add an eSATA port to your PC, extended from internal Serial ATA connection port. The ESATAPLT1LP Low Profile SATA to eSATA plate adds external data support to any existing Serial ATA controller, allowing you to connect external SATA (eSATA) storage to a computer. With support for data transfer rates of up to 6Gbps, this external SATA plate allows you to take advantage of the increased data integrity provided by external hard drives or RAID devices that support eSATA connections.
The adapter plate can be mounted to the rear panel of the computer case, providing straightforward eSATA to SATA connections and allowing users to connect their eSATA device (hard drive enclosure, etc.) to the provided eSATA port which is an extension of the motherboard SATA data connector.