X99-A II Desktop Motherboard

Awaken the true performance with one click and pioneering OC socket, plus ASUS Aura and SafeSlot.

  • 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.
  • 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.
  • Next-gen connectivity – Great flexibility with onboard U.2 / M.2 slots that tap into 32Gbps of PCIe bandwidth and USB 3.1 Type-C.

Manufacturer Part Number
X99-A II
Full Product Specifications

Note:

  • The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
  • These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
  • These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

CPU

  • Intel® Processors 
  • Intel® Core™ i7 X-Series Processors on LGA 2011-3 Socket
  • Supports Intel® 14 nm CPU
  • Supports Intel® Turbo Boost Technology 
  • * The Intel® Turbo Boost Technology 2.0 support depends on the CPU types.
Chipset
  • Intel® X99
Memory
  • 8 x DIMM, Max. 128GB, DDR4 3333(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2800(O.C.)/2666(O.C.)/2400(O.C.)/2133 MHz Memory 
  • Quad Channel Memory Architecture 
  • Supports Intel® Extreme Memory Profile (XMP)
  • * Hyper DIMM support is subject to the physical characteristics of individual CPUs. 
  • * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Multi-GPU Support
  • Supports NVIDIA® Quad-GPU SLI™ Technology 
  • Supports NVIDIA® 3-Way SLI™ Technology 
  • Supports AMD Quad-GPU CrossFireX™ Technology 
  • Supports AMD 3-Way CrossFireX™ Technology
Expansion Slots
  • 40-Lane CPU-
  • 3 x PCIe 3.0/2.0 x16 (x16 or x16/x16, x8/x16/x8) *1
  • 28-Lane CPU-
  • 3 x PCIe 3.0/2.0 x16 (x16, x16/x8, x8/x8/x8) *2
  • 1 x PCIe 2.0 x16 (x4 mode) *3
  • 2 x PCIe 2.0 x1 (x1 mode) *3
Storage
  • New Intel® Core™ i7 X-Series Processors : 
  • 1 x M.2 x4 Socket 3, with M Key, type 2242/2260/2280/22110 storage devices support (Support PCIE SSD only)*4
  • 1 x U.2 port, support PCIe 3.0 x4 NVM Express storage*4
  • Intel® X99 chipset : 
  • 1 x SATA Express port, Compatible with 2 x SATA 6.0 Gb/s ports
  • 8 x SATA 6Gb/s port(s)*5
  • Support Raid 0, 1, 5, 10
  • Supports Intel® Smart Response Technology, Intel® Rapid Recovery Technology*6
LAN
  • Intel® I218V, 1 x Gigabit LAN Controller(s)
Audio
  • Realtek® ALC1150 8-Channel High Definition Audio CODEC featuring Crystal Sound 3
  • - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking
  • - High quality 112 dB SNR stereo playback output (Line-out at rear) and 104 dB SNR stereo playback input (Line-in)
  • - High-fidelity audio OP AMP(s)
  • Audio Feature :
  • - DTS Connect
  • - DTS Studio Sound
  • - Optical S/PDIF out port(s) at back panel
  • - BD Audio Layer Content Protection
  • - Audio Shielding: Ensures precision analog/digital separation and greatly reduced multi-lateral interference
  • - Dedicated audio PCB layers: Separate layers for left and right channels to guard the quality of the sensitive audio signals
  • - Audio amplifier: Provides the highest-quality sound for headphone and speakers
  • - Premium Japanese-made audio capacitors: Provide warm, natural and immersive sound with exceptional clarity and fidelity
  • - Unique de-pop circuit: Reduces start-up popping noise to audio outputs
  • - Top notch audio sensation delivers according to the audio configuration
  • - EMI protection cover to prevent electrical noise to affect the amplifier quality
  • - Power pre-regulator: Reduces power input noise to ensure consistent performance
USB Ports
  • Intel® X99 chipset :
  • 5 x USB 3.0/2.0 port(s) (1 at back panel, blue, 4 at mid-board)
  • Intel® X99 chipset : 
  • 8 x USB 2.0/1.1 port(s) (4 at back panel, blue, 4 at mid-board)
  • ASMedia® USB 3.1 controller : 
  • 2 x USB 3.1/3.0/2.0 port(s) ( at back panel, teal blue, Type-A + Type-C)
  • ASMedia® USB 3.0 controller : 
  • 3 x USB 3.0/2.0 port(s) ()
Special Features
  • 5-Way Optimization by Dual Intelligent Processors 5
  • - 5-Way Optimization tuning key perfectly consolidates TPU, EPU, DIGI+ VRM, Fan Xpert 4, and Turbo Core App
  • ASUS 5X Protection II :
  • - ASUS LANGuard - 2.5X higher surge tolerance
  • - ASUS Overvoltage Protection - World-class circuit-protecting power design
  • - ASUS DIGI+ VRM - 8 Phase digital power design
  • - ASUS DRAM Overcurrent Protection - Prevents damage from short circuits
  • - ASUS Stainless-Steel Back I/O - 3X corrosion-resistance for greater durability
  • ASUS TPU :
  • - Auto Tuning
  • - GPU Boost 
  • ASUS EPU :
  • - EPU 
  • ASUS Digital Power Design :
  • - Industry leading Digital 8 Phase Power Design
  • - Industry leading Digital 4 Phase DRAM Power Design
  • - CPU Power Utility
  • - DRAM Power Utility
  • ASUS Exclusive Features :
  • - Remote GO!
  • - USB BIOS Flashback
  • - MemOK!
  • - AI Suite 3
  • - Ai Charger+
  • - USB Charger+ 
  • - M.2 & SATA Express
  • - Anti-Surge
  • - Onboard Button : Power/Reset
  • - ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface 
  • - USB 3.1 Boost
  • - Turbo LAN
  • - Crystal Sound 3
  • - EZ XMP ASUS Exclusive Features
  • - Mobo Connect
  • - PC Cleaner
  • Remote Entertainment
  • - Media Streamer
  • - HyStream
  • ASUS Quiet Thermal Solution :
  • - ASUS Fan Xpert 4
  • ASUS EZ DIY :
  • - Precision Tweaker 2
  • - ASUS O.C. Tuner
  • - ASUS O.C. Profile
  • - ASUS CrashFree BIOS 3 
  • - ASUS EZ Flash 3 
  • - ASUS USB BIOS Flashback 
  • - ASUS UEFI BIOS EZ Mode
  • - Push Notice
  • ASUS Q-Design :
  • - ASUS Q-Shield
  • - ASUS Q-Code
  • - ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
  • - ASUS Q-Slot
  • - ASUS Q-DIMM 
  • - ASUS Q-Connector
  • Special Memory O.C. Design
  • AURA: RGB Lighting Control
  • Special Memory O.C. Design
  • Turbo App
Operating System Support
  • Windows® 10 , 64bit
  • Windows® 8.1 
  • Windows® 8 
  • Windows® 7
Back I/O Ports
  • 1 x PS/2 keyboard/mouse combo port(s)
  • 1 x LAN (RJ45) port(s)
  • 2 x USB 3.1 ()Type-A + Type-C
  • 4 x USB 3.0 
  • 4 x USB 2.0 
  • 1 x Optical S/PDIF out
  • 5 x Audio jack(s)
Internal I/O Ports
  • 1 x U.2 port
  • 1 x AAFP connector
  • 1 x RGB Header(s)
  • 2 x USB 3.0 connector(s) support(s) additional 4 USB 3.0 port(s) 
  • 2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
  • 1 x SATA Express connector: , Compatible with 2 x SATA 6.0 Gb/s ports
  • 1 x M.2 Socket 3 with M Key design, type 2242/2260/2280/22110 storage devices support (Support PCIE SSD only)
  • 8 x SATA 6Gb/s connector(s)
  • 1 x CPU Fan connector(s) (1 x 4 -pin)
  • 1 x CPU OPT Fan connector(s) (1 x 4 -pin)
  • 2 x Chassis Fan connector(s) (2 x 4 -pin)
  • 1 x S/PDIF out header(s)
  • 1 x Thunderbolt header(s)
  • 1 x 24-pin EATX Power connector(s)
  • 1 x 8-pin ATX 12V Power connector(s)
  • 1 x 4-pin ATX 12V Power connector(s)
  • 1 x EZ XMP switch
  • 1 x 5-pin EXT_FAN(Extension Fan) connector
  • 1 x DRCT header(s)
  • 1 x MemOK! button(s)
  • 1 x Thermal sensor connector(s)
  • 1 x CPU OV
  • 1 x Power-on button(s)
  • 1 x Reset button(s)
  • 1 x Clear CMOS jumper(s)
  • 1 x Water Pump header (4-pin)
  • 1 x 14-1 pin TPM connector
  • 1 x COM port header
Accessories
  • User's manual
  • ASUS Q-Shield
  • 4 x SATA 6Gb/s cable(s)
  • 1 x M.2 Screw Package
  • 1 x CPU installation tool
  • 1 x Supporting DVD
  • 1 x SLI bridge(s)
  • 1 x Q-connector(s) (1 in 1) 
  • 1 x Extension Cable for RGB strips (80 cm)
Form Factor
  • ATX Form Factor 
  • 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
Note

1* PCIe x16_1 and PCIe x16_4 slots share the same bandwidth. PCIe x16_4 slot support up to x8 mode.
2* When using a 28-lane CPU, the PCIe x16_3 slot support up to x8 mode.
3* The PCIe x16_2 shares bandwidth with USB 3.1 and PCIe x1_2 slot. By default, the PCIe x16_2 slot automatically runs at x1 mode.
4* M.2 shares bandwidth with U.2, only one device can be activated at a time.
5* Due to chipset behavior, The SATA6G_78, SATA6G_910 ports (black) do not support IRST including RAID configuration.
6* These functions will work depending on the CPU installed.