Add two e SATA ports to your PC, extended from internal Serial ATA connection ports. This 2-Port e SATA plate (low profile/half-height) adds external data support to any existing SATA (Serial ATA) controller, allowing you to connect external SATA (e SATA) storage to a computer. With support for data transfer rates of up to 300 M Bps, this external SATA plate enables you to take advantage of the increased data integrity provided by external hard drives or RAID devices that support e SATA connections. Connecting e SATA storage couldn't be simpler. Just install the plate into an open I/O low profile slot on your computer & connect the cables to the Serial ATA connectors on your motherboard or controller card. The slim SATA data cable connecting the motherboard or controller card SATA connection to ESATAPLT2LP is takes up minimal space inside the computer case, providing less clutter for increased internal airflow.