Model
ROG MAXIMUS X HERO
CPU
 Intel® Socket 1151for 8th Generation Core™  Processors
 Supports Intel® 14nm CPU
 Supports Intel® Turbo Boost Technology 2.0
 * The Intel® Turbo Boost Technology 2.0 support depends on the CPU types.
 * Refer to www.asus.com for CPU support list
Chipset
 Intel® Z370
Memory
 4 x DIMM, Max. 64GB, DDR4 4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3333(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2800(O.C.)/2666/2400/2133 MHz Non-ECC, Un-buffered Memory
 * Hyper DIMM support is subject to the physical characteristics of individual CPUs.
 Supports Intel® Extreme Memory Profile (XMP)
 Dual Channel Memory Architecture
 * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Graphic
 Maximum shared memory of 1024 MB
 Multi-VGA output support : HDMI/DisplayPort 1.2 ports
 - Supports HDMI with max. resolution 4096 x 2160 @ 24Hz
 - Supports DisplayPort with max. resolution 4096 x 2304 @ 60 Hz
 Integrated Graphics Processor
Multi-GPU Support
 Supports NVIDIA® 2-Way SLI™ Technology
 Supports AMD 3-Way CrossFireX™ Technology
Expansion Slots
 Intel® Z370 Chipset
 3 x PCIe 3.0/2.0 x1
 1 x PCIe 3.0 x16 (x4 mode) *1
 2 x PCIe 3.0 x16 (x16 or dual x8)
Storage
 1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (PCIE 3.0 x 4 mode)*3
 Supports Intel® Smart Response Technology*4
 Intel® Z370 Chipset : 
 1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)*2
 Support Raid 0, 1, 5, 10
 Intel® Optane™  Memory Ready
 6 x SATA 6Gb/s port(s)
LAN
 ROG GameFirst IV
 Intel® I219V
 Anti-surge LANGuard
Audio
 - Supports up to 32-Bit/192kHz playback *5
 - Sonic Studio III
 ROG SupremeFX8-Channel High Definition Audio CODEC S1220
 - Impedance sense for front and rear headphone outputs
 - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking
 - High quality120dBSNR stereo playback outputand113dBSNR recording input
 - SupremeFX Shielding Technology
 - ESS® ES9023P
 - Gold-plated jacks
 - Sonic Radar III
 Audio Feature :
 - Optical S/PDIF out port(s) at back panel
USB Ports
 6 x USB 3.1 Gen 1 port(s) (4 at back panel, +blue, 2 at mid-board)
 6 x USB 2.0 port(s) (2 at back panel, +black, 4 at mid-board)
 Intel® Z370 Chipset :
 1 x USB 3.1 Gen 2 front panel connector port(s)
 ASMedia® USB 3.1 Gen 2 controller :
 2 x USB 3.1 Gen 2 port(s) (2 at back panel, , Type-A + USB Type-CTM)
ROG Exclusive Features
 - One-click Overclocking
 - DirectKey
 KeyBot II
 - X.M.P.
 - ClrCMOS
 - Power On
 - O.C. Profile
 MemOK! Button
 - NexFET™ Power Block MOSFET
 ROG RAMDisk
 ROG RAMCache II
 GameFirst IV
 ROG CPU-Z
 ROG CloneDrive
 Pre-mounted I/O Shield
 Slow Mode
 Overwolf
 Mem TweakIt
 USB BIOS Flashback
 Extreme Engine Digi+ :
 - MicroFine Alloy Chokes
 - 10K Black Metallic Capacitors
 ROG Extreme OC kit :
 - Safe Boot button
 - LN2 Mode
 UEFI BIOS features :
 - Tweakers´ Paradise
 - ROG SSD Secure Erase
 Extreme Tweaker
Special Features
 - Disk Unlocker
 CPU Installation Tool
 - Three-step simplicity and safety
 - 3D Printing Friendly
 ASUS Dual Intelligent Processors 5-Way Optimization by Dual Intelligent Processors 5 :
- 5-Way Optimization tuning key perfectly consolidates TPU, EPU, DIGI+ VRM, Fan Expert 4, and Turbo App
- 5-Way Optimization tuning key perfectly consolidates TPU, EPU, DIGI+ VRM, Fan Expert 4, and Turbo App
 - Aura Lighting Control
 - Aura Lighting Effects Synchronization with compatible ASUS ROG devices
 - Aura Addressable Strip Header(s)
 - ASUS Q-Code
 - ASUS Q-Connector
 Gaming Aesthetics :
 - AURA-RGB Lighting
 AURA :
 - Aura RGB Strip Headers
 ASUS Exclusive Features :
 - AI Suite 3
 ASUS EZ DIY :
 - ASUS CrashFree BIOS 3
 - ASUS EZ Flash 3
 ASUS Q-Design :
 - ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
 - ASUS Q-Slot
 - ASUS Q-DIMM
Back I/O Ports
 2 x USB 3.1 Gen 2 Type-A + USB Type-CTM
 4 x USB 3.1 Gen 1 (blue)
 1 x Clear CMOS button(s)
 1 x USB BIOS Flashback Button(s)
 5 x Gold-plated audio jacks
 1 x DisplayPort
 1 x HDMI
 1 x LAN (RJ45) port(s)
 2 x USB 2.0
 1 x Optical S/PDIF out
Internal I/O Ports
 3 x 3D Mount screw port(s)
 1 x USB 3.1 Gen 1 connector(s) support(s) additional 2 USB 3.1 Gen 1 port(s)
 1 x MemOK! button(s)
 1 x Aura Addressable Strip Header(s)
 1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
 1 x W_PUMP+ connector (1 x 4-pin)
 1 x  EXT_Fan header
 1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (PCIE 3.0 x 4 mode)
 1 x TPM connector(s)
 1 x H_AMP fan connector
 1 x Slow Mode switch(es)
 1 x Reset button(s)
 1 x LN2 Mode jumper(s)
 1 x Safe Boot button
 1 x ReTry button
 1 x System panel connector
 1 x W_IN header
 1 x W_OUT header
 1 x W_FLOW header
 1 x Thermal sensor connector
 1 x Start button
 1 x USB 3.1 Gen 2 front panel connector
 2 x Aura RGB Strip Headers
 2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
 6 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)
 3 x Chassis Fan connector(s) (3 x 4-pin)
 1 x AIO_PUMP connector (1 x 4-pin)
 1 x 24-pin EATX Power connector(s)
 1 x 8-pin ATX 12V Power connector(s)
 1 x Front panel audio connector(s) (AAFP)
Accessories
 1 x 3D printing mount package
 1 x MOS fan bracket kit
 1 x CPU installation tool
 1 x SLI HB BRIDGE(2-WAY-M)
 1 x ROG big sticker
 1 x Q-Connector
 1 x Extension Cable for RGB strips (80 cm)
 1 x ROG coaster(s)
 User´s manual
 4 x SATA 6Gb/s cable(s)
 1 x M.2 Screw Package
 1 x Supporting DVD
 1 x Extension cable for Addressable LED
BIOS
 1 x 128 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI3.0, WfM2.0, SM BIOS 3.0, ACPI 6.0, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F11 EZ Tuning Wizard, F6 Qfan Control, F3 My Favorites, Last Modified log, F12 PrintScreen, F3 Shortcut functions and ASUS DRAM SPD (Serial Presence Detect) memory information.
Operating System
 Windows® 10 64-bit
Form Factor
 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
 ATX Form Factor
Note
 *1 The PCIe x4_3 slot shares bandwidth with PCIex1_3. The PCIe x4_3 runs x2 mode by default. 
*2 When the M.2_1 socket is operating in SATA mode, SATA port 1 will be disabled.
*3 When the M.2_2 socket is operating in PCIEX4 mode, SATA port 5. 6 will be disabled.
*4 This function will work depending on the CPU installed.
*5 Due to limitations in HDA bandwidth, 32-Bit/192kHz is not supported for 8-Channel audio.
*2 When the M.2_1 socket is operating in SATA mode, SATA port 1 will be disabled.
*3 When the M.2_2 socket is operating in PCIEX4 mode, SATA port 5. 6 will be disabled.
*4 This function will work depending on the CPU installed.
*5 Due to limitations in HDA bandwidth, 32-Bit/192kHz is not supported for 8-Channel audio.
- ROG MAXIMUS X HERO
