DAGE408U40TG5-ES is an external 4U-8 bay hot-swappable SATA rackmount disk array storage chassis. It provides users a most big storage capacity for up to 8 hard drives for RAID configurations. This 4U-8 Bay external SATA enclosure is designed with 8 eSATA connectors. One 120mm Ball bearing fan offer long lasting and enhanced thermal cooling solution. DAGE408U40TG5-ES provides maximum storage and performance to high density storage system.