Best QNAP 240TB (Seagate Exos) TL-R1200PES-RP 12-bay 2U rackmount PCIe interface SATA JBOD expansion enclosure; 2.5/3.5 SATA 6Gbps drives; 2 ports (SFF-8644 1x2); short depth 14.59-inch / 370.65mm; redundant PSU; without rail kit. support TS-h3087XU-RP?; TS-h2 for Business