ASRock Motherboard ATX DDR4 LGA 1151 E3V5 WS CPU: LGA 1151. Supports Intel Xeon E3-1200 v5 Processor Memory: 4x DDR4-2133 DIMM Slots, Dual-Channel, ECC, Non-ECC, Unbuffered, Max capacity of 64GB Slots: 2x PCI-Express 3.0 x16 Slots (one runs at x4), 3x PCI-Express 3.0 x1 Slots (Flexible PCI-Express) SATA: 6x SATA3 Ports Ports: 6x USB 3.0 Ports (4 rear, 2 via header), 6x USB 2.0 Ports (2 rear, 4 via headers), 1x PS/2 Keyboard Port, 1x PS/2 Mouse Port, 1x RJ45 LAN Port, Audio I/O Jacks Form Factor: ATX