Turn a standard SATA motherboard connection into an external e SATA port. The ESATAPLT18IN 18-inch 1-port SATA to e SATA plate adapter adds external data support using an existing motherboard Serial ATA controller. Simply mount the plate to the rear panel of your computer cases an extension of the motherboard SATA data connector, in order to add a port for connecting external SATA storage devices (e.g. external e SATA hard drive). Designed to take advantage of the increased data integrity provided by external hard drives or RAID devices that support e SATA connections, the e SATA-SATA adapter supports data transfer rates of up to 6 Gbps.