Processor: Intel Celeron N5105 Quad-Core, 2.0 GHz up to 2.9 GHz Memory: 4GB DDR4-2933 SO-DIMM (Expandable. max. 16GB, 8GB x2) Drive Bays: 4x 2½"/3½" SATA III M.2: 4x M.2 PCIe (NVMe) Support M.2 2280 USB: 3x USB 3.2 Gen 2x1 (1x Front ; 2x Rear) LAN: 2x 2.5-Gigabit (Wake On WAN) Dimensions(HxWxD): 170x174x230 mm Weight: 2.26kg/4.98lb Power: 90W AC Adapter Operation/Disk Hibernation/Sleep Mode (S3): 38.3W/17.7W/0.81W Volume Type: Single, JBOD, RAID 0/1/5/6/10, RAID 1/5 + Hot Spare Display Out: 1x HDMI 2.0b Infrared Receiver: Yes