Number of EATX power connectors: 1 Ethernet LAN (RJ-45) ports: 1 Clear CMOS jumper: Yes Intel Core i3/i5/i7 series: i7-xxx USB 3.1 (3.1 Gen 2) Type-C ports quantity: 1 USB 2.0 connectors: 2 Number of SATA Express connectors: 1 Memory slots: 8 TPM connector: Yes S/PDIF out connector: Yes USB 3.0 (3.1 Gen 1) connectors: 2 Component for: PC Number of M.2 (M) slots: 1 BIOS type: UEFI USB 3.1 (3.1 Gen 2) Type-A ports quantity: 1 CPU fan connector: Yes Supported hard disk drive interfaces: M.2, SATA Compatible processor series: Core i7 Processor family: Intel Motherboard form factor: ATX PCI Express x1 (Gen 2.x) slots: 2 S/PDIF out port: Yes Supported memory types: DDR4-SDRAM Ethernet interface type: Gigabit Ethernet COM ports quantity: 1 Windows operating systems supported: Windows 10 Education x64, Windows 10 Enterprise x64, Windows 10 Home x64, Windows 10 Pro x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64 Number of SATA Express ports: 2 Processor socket: LGA 2011-v3 Cables included: SATA Memory channels: Quad Number of chassis fan connectors: 2 Number of SATA connectors: 8 PS/2 ports quantity: 1 RAID levels: 0, 1, 5, 10 Headphone outputs: 5 LAN controller: Intel I218V Thunderbolt headers: 1 Memory slots type: DIMM Motherboard chipset family: Intel PCI Express x16 (Gen 2.x) slots: 1 USB 2.0 ports quantity: 4 USB 3.0 (3.1 Gen 1) Type-A ports quantity: 4 Motherboard chipset: Intel X99 Chipset: Intel® X99 Number of memory slots: 8 Producer product name: X99-A II Maximum number of PCI Express lanes: 40 Supported memory clock speeds: 2133,2400,2666,2800,3000,3200,3300,3333 MHz Maximum internal memory: 128 GB Quick installation guide: Yes Ethernet LAN: Yes Intel Extreme Memory Profile (XMP): Yes Width: 3.05 cm Depth: 2.44 cm Saleout: REFURBISHED. USED. BACK PANEL INCLUDED, WITHOUT ORIGINAL PACKAGING AND ACCESSORIES. Warranty: 3 month(s) Gross weight: 1.72 kg Net weight: 1.30 kg