Monoprice 108792 6-Feet SATA 6 Gbps External Shielded Cable, eSATA to SATA Type I to Type L, Black External SATA (eSATA) cables are designed to connect external SATA devices to either external SATA ports or internal SATA connectors Unlike cables for internal applications eSATA cabling must be shielded The eSATA connectors are keyed differently to prevent the use of internal SATA cables in external applications