QNAP QXP-1620S-B3616W. Host interface: PCI Express, Output interface: Mini-SAS, Expansion card standard: PCIe 3.0. Cooling type: Active, Number of fans: 1 fan (s). Data transfer rate (max): 12 Gbit/s. Connectivity technology: Wired, Interface: Fiber\n\n\n\n\n\n Product Model: QXP-1620S-B3616W\n\n\n