StarTech.com 4 Bay External Hard Drive Array Storage Tower &ndash; eSATA USB 2.0 Enclosure 3.5" external enclosure support for up to 4 drives provide large amounts of storage with a choice of high speed interfaces from USB 2.0 or eSATA The removable front cover and accessible 3.5 inch drive bays allows SATA drives to be replaced easily in case of failure or upgraded Multi bay drive enclosure with an 80mm controllable cooling fan and aluminum chassis help to keep drives from overheating 4 bay SATA enclosure with High Speed USB 2.0 host interface, with transfer rates up to 480Mbps External multi drive enclosure with SATA revision 2 compliant eSATA host interface with transfer rates up to 3.0Gbps 3.5in HDD enclosure is manually switchable between eSATA and USB host interfaces External storage array with removable front cover and accessible drive trays External storage enclosure with 80mm cooling fan with 4 selectable speeds: Low, Med, High, Auto Support for up to 4 drives provide large amounts of storage with a choice of high speed interfaces from USB 2.0 or eSATA The removable front cover and accessible drive bays allows drives to be replaced easily in case of failure or upgraded An 80mm controllable cooling fan and aluminum chassis help to keep drives from overheating High Speed USB 2.0 host interface, with transfer rates up to 480Mbps SATA revision 2 compliant eSATA host interface with transfer rates up to 3.0Gbps Manually switchable between eSATA and USB host interfaces Removable front cover and accessible drive trays 80mm cooling fan with 4 selectable speeds: Low, Med, High, Auto