The QNAP REXP-1000 Pro expansion enclosure is designed for expanding the storage space on the Turbo NAS & can support maximum 250TB raw capacity* by connecting multiple expansion enclosures via high-speed mini SAS cables. This is especially useful for large data applications, such as video surveillance, data archiving, & TV broadcast storage. Plug & use, seamless capacity expansion Simply connect a REXP-1000 Pro to a Turbo NAS* & power it on. The Turbo NAS will detect the hard drives in the REXP-1000 Pro as newly installed local drives. The Turbo NAS capacity can be expanded seamlessly by using the powerful QTS Storage Manager. High density, high efficiency & highly scalable The REXP-1000 Pro supports 10 hard drives & 50TB raw capacity, & has two SAS wide ports (IN port & OUT port) for host connectivity & daisy-chain respectively. Each SAS wide port combines four SAS channels (maximum 8 SAS channels supported per expansion enclosure). The solution delivers unprecedented performance of up to 24 Gbps per host connection. Powerful QTS Storage Manager The QTS Storage Manager neatly presents tools & options for managing system storage with an intuitive graphical user interface, which simplifies the process of NAS capacity expansion & REXP-1000 Pro management. IT administrators can easily monitor the health status of REXP-1000 Pro & the disks within it. When cascading multiple expansion enclosures in a rack, the Locate Disk & Locate Enclosure functions assist IT administrators for quick maintenance.