Vantec Mrk-250St Ez Swap Ex 2.5 Serial Ata Hard Drive Sata To Sata Usb 2.0 Model - MRK-250ST Device Space - 2.5" Serial ATA Hard Drive Internal Interface - Serial ATA External Interface - Serial ATA(Internal Connection), USB 2.0(External Connection) , Transfer rate - USB 2.0(Up to 480Mbps) , SATA(Up to 1.5 Gbps)