Add two esata ports to your pc extended from internal serial ata connection ports the esataplt2lpm sata to esata plate adapter low profilehalf height adds external data support to any existing serial ata sata controller enabling you to connect external sata esata storage to a computer with support for data transfer rates of up to 300mbps this external sata plate lets you take advantage of the increased data integrity provided by external hard drives or raid devices that support esata