Key Features 1U rackmount chassis, support for motherboard size: 12" x 13" E-ATX Optimized for X11 WIO (W series) motherboards 8 x 2.5" hot-swap SAS/SATA drive bay SAS or enterprise SATA HDD only recommended 8-port 1U SAS3 12Gbps Hybrid backplane, support up to 6x 2.5-inch SAS3/SATA3 HDD/SSD and 2x SAS3/SATA3/NVMe Storage Devices 1U Redundant 700/750W Single Output Power Supply Platinum level, 54.5mm width 2 full height expansion slot(s) (Riser Card Required), 1 low-profile expansion slot(s) (Riser Card Required) 4 x 40x56mm counter-rotation PWM fan(s) Optional 2 x fan for PCI card cooling