Item model number: X99-A II
  • Next-gen connectivity – Includes extensive upgrades including onboard U.2 / M.2 slots that tap into 32Gbps of PCIe bandwidth, as well as onboard USB 3.1 Type C
  • ASUS Aura – Features controllable RGB onboard lighting and 4-pin strip header that can be synced with an ever-growing portfolio of Aura-capable ASUS hardware
  • Patent-pending SafeSlot – Reinvented, strengthened PCIe slot utilizes a new insert-molding process to bind the slot to fortifying metal for superior retention and shearing resistance
  • 5-Way Optimization: Fan Xpert 4 – Elevates customized cooling to new heights, with the ability to detect PWM/DC fans on all headers, utilize high-amperage fans and control water-cooling pumps in software and UEFI
  • Crystal Sound 3 – Gaming-grade audio with unmatched clarity featuring a new power pre-regulator for clean power delivery, which joins ASUS-pioneered noise isolation design and premium audio components

Memory channels Quad Memory slots type DIMM
Number of memory slots 8 Supported memory clock speeds 2133,2400,2666,2800,3000,3200,3300,3333 MHz
Supported memory types DDR4-SDRAM Maximum internal memory 128 GB
Processor manufacturer Intel Processor socket LGA 2011-v3
Intel Core i3/i5/i7 series i7-xxx Compatible processor series Intel Core i7
Internal I/O
Number of SATA Express ports 2 Thunderbolt headers 1
CPU fan connector Yes Supported storage drive interfaces M.2, Serial ATA
USB 3.0 (3.1 Gen 1) connectors 2 S/PDIF out connector Yes
USB 2.0 connectors 2 Number of EATX power connectors 1
TPM connector Yes Number of SATA Express connectors 1
Number of chassis fan connectors 2 Number of M.2 (M) slots 1
Number of SATA connectors 8
Back panel I/O ports
USB 3.1 (3.1 Gen 2) Type-A ports quantity 1 USB 2.0 ports quantity 4
USB 3.0 (3.1 Gen 1) Type-A ports quantity 4
Back panel I/O ports
S/PDIF out port Yes USB 3.1 (3.1 Gen 2) Type-C ports quantity 1
COM ports quantity 1 Ethernet LAN (RJ-45) ports 1
PS/2 ports quantity 1 Headphone outputs 5
Ethernet interface type Gigabit Ethernet LAN controller Intel I218V
Ethernet LAN Yes
Intel Extreme Memory Profile (XMP) Yes RAID levels 0, 1, 5, 10
Component for PC Motherboard form factor ATX
Motherboard chipset Intel X99 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
Motherboard chipset family Intel
Expansion slots
PCI Express x16 (Gen 2.x) slots 1 PCI Express x1 (Gen 2.x) slots 2
Clear CMOS jumper Yes BIOS type UEFI
Weight & dimensions
Width 30.5 mm Depth 24.4 mm
Packaging content
Cables included SATA Quick installation guide Yes
Technical details
Maximum number of PCI Express lanes 40

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