Rosewill METAS Rigid Aluminum Body and ABS Plastic Top Cover 3.5-Inch USB 3.0 and eSATA External Enclosure Cooling RDEE-11001 Black/Silver Size: 3.5" AC Adapter: 100-240 AC Adapter with 12V/ DC output Internal Interface: SATA I/II External Interface: USB 3.0 & eSATA Maximum Capacity (per Bay): Up to 3TB (WinXP Not supported 3TB) Fan: 1 x 80mm fan Back panel Power ON/OFF switch Front panel LED for Power & R/W activity