Intel Celeron N5105/N5095 4-core/4-thread, burst up to 2.9 GHz, 8GB RAM (on-board, non-expandable), 4 x 3.5/2.5 SATA 6Gb/s drive bays, 1 x PCIe Gen3x2 slot, 2 x 2.5GbE LAN, Intel UHD Graphics, 4K HDMI v1.4b, 2 x USB 3.2 Gen2 Type-A, 2 x USB 2.0, 1 x 250W PSU Storage Device Type: Network Attached Storage Processor / Type: Celeron Processor / Clock Speed: 2 GHz Processor / Number: N5105 Multi-Core Technology: Quad-Core RAM / Total Installed Size: 8 GB Total Storage Capacity: 4 x 3.5/2.5 SATA 6Gb/s drive bays, 1 x PCIe Gen3x2 slot Data Link Protocol: Gigabit Ethernet Processor Cache Memory Installed Size: 4 MB Storage Hard Drive / Size: 3.5'; 2.5' Hard Drive / Interface Type: SATA 6 Gb/s Storage Controller Storage Controller Type: PCI Express Expansion Interfaces & Connections: 2 x 2.5GbE LAN, 4K HDMI v1.4b, 2 x USB 3.2 Gen2 Type-A, 2 x USB 2.0, USB 2.0 Qty: 2 Power Power / Installed Qty: 1 Power / Provided (W): 250 Watt