Addonics Storage Controller AD5HPMREU Connect up to five SATA hard drives or optical drives to any system via any eSATA ports or USB ports RAID configuration in two ways Integrated hardware RAID controller to maximize performance Compatible with SATA optical drives - support simultaneous DVD writing Raid Volume Can Be Used As A Boot Drive Or As Additional Storage Multiple Units Can Be Daisy Chained Supports RAID0, RAID1, RAID3, RAID5, RAID10, JBOD, Clone Mode using built-in hardware RAID Supports Individual Drive Mode Via Esata Or Usb Connection