High quality aluminum case Tool free to install HDD, support hot-swap External USB3.0 output interface, support transfer rate up to 5Gbps; support multiple RAID modes includes RAID 0, RAID 1, RAID 5, RAID 10, JBOD, CLONE and Normal single hard drive can support 16TB, total of four hard drive supports 64TB. 18 Months warranty and lifetime technical support for purchase