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Rectangular ATX motherboard in dark grey with silver heatsinks, four DDR4 slots and multiple PCIe slots visible

ASUS

ASUS ROG Maximus X Hero Z370 Intel motherboard

SKU CH-K6NH-1CKZA

ATX Intel Z370 board for 8th Gen Core CPUs with LGA 1151 socket, four DDR4 slots up to 4133 O.C., dual PCIe 3.0 x16, two M.2 sockets, six SATA 6Gb/s ports, SupremeFX S1220 audio and Intel I219-V LAN

  • CPU Socket TypeLGA 1151 (300 Series)
  • CPU TypeIntel LGA1151 socket only for 8th Gen Intel Core Processors*
  • Supported CPU TechnologiesSupports Intel Turbo Boost Technology 2.0* *Intel Turbo Boos
  • ChipsetIntel Z370
  • Onboard Video ChipsetIntegrated Graphics Processor Multi-VGA output support: HDMI
  • Number of Memory Slots4x288pin (DDR4)
  • Supports 8th Gen Intel Core CPUs via LGA 1151 socket
  • DDR4 memory up to 4133 MHz overclocked across four slots
  • Dual-channel architecture with 64 GB maximum capacity
  • ROG SupremeFX S1220 codec delivers 8-channel high-definition audio
  • Intel I219-V LAN controller provides wired networking

LGA 1151 Z370 board for 8th Gen Intel Core

The ASUS ROG Maximus X Hero uses the Intel Z370 chipset and an LGA 1151 socket limited to 8th generation Intel Core processors. It is not backward compatible with earlier LGA 1151 CPUs. The ATX layout provides dual-channel DDR4 memory across four slots with a maximum capacity of 64 GB.

Thermal design and power delivery for overclocking

Heatsinks on the voltage regulator modules and the chipset dissipate heat during sustained loads. Fan headers support PWM and DC control for precise cooling curves. The 8-pin and 4-pin CPU power connectors supply stable current for high-frequency operation. Intel I219-V LAN adds low-latency wired networking.

SupremeFX S1220 audio and M.2 flexibility

The onboard ROG SupremeFX S1220 codec delivers eight-channel high-definition audio with dedicated headphone amplification. Two M.2 sockets accept 2242, 2260 and 2280 modules; the first supports both PCIe 3.0 x4 and SATA modes while the second runs PCIe 3.0 x4. Six SATA 6 Gb/s ports provide RAID 0, 1, 5 and 10 options.

Highlights

  • Supports 8th Gen Intel Core CPUs via LGA 1151 socket
  • DDR4 memory up to 4133 MHz overclocked across four slots
  • Dual-channel architecture with 64 GB maximum capacity
  • ROG SupremeFX S1220 codec delivers 8-channel high-definition audio
  • Intel I219-V LAN controller provides wired networking

Specifications

BrandASUS
SeriesROG
ModelMaximus X Hero
CPU Socket TypeLGA 1151 (300 Series)
CPU TypeIntel LGA1151 socket only for 8th Gen Intel Core Processors* Not backward compatible with older generation of LGA 1151 CPUs* Refer to www.asus.com for CPU support list
Supported CPU TechnologiesSupports Intel Turbo Boost Technology 2.0* *Intel Turbo Boost Technology 2.0 support depends on the CPU types
ChipsetIntel Z370
Onboard Video ChipsetIntegrated Graphics Processor Multi-VGA output support: HDMI/DisplayPort 1.2 ports - Supports HDMI with max. resolution 4096 x 2160 @ 24 Hz- Supports DisplayPort with max. resolution 4096 x 2304 @ 60 Hz Maximum shared memory of 1024MB
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 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* Hyper DIMM support is subject to the physical characteristics of individual CPUs. * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Maximum Memory Supported64GB
Channel SupportedDual Channel
PCI Express 3.0 x16New 8th Gen Intel Core Processors:2 x PCIe 3.0 x16 slots (supports x16, x8/x8) Intel Z370 Chipset:1 x PCIe 3.0 x16 slot (max. at x4 mode)* * The PCIe x4_3 slot shares bandwidth with PCIex1_3. The PCIe x4_3 runs x2 mode by default.
PCI Express x13 x PCIe 3.0/2.0 x1
Serial ATA (SATA)6 x SATA 6Gb/s
M.21 x M.2_1 Socket 3 with M Key, type 2242/2260/2280 (supports PCIE 3.0 x4 and SATA modes)* 1 x M.2_2 Socket 3 with M Key, type 2242/2260/2280 (supports PCIE 3.0 x4 mode)** * When the M.2_1 Socket 3 is operating in SATA mode, SATA port 1 will be disabled.** When the M.2_2 Socket 3 is operating in PCIEX4 mode, SATA port 5. 6 will be disabled.
SATA RAID0/1/5/10
Audio ChipsetROG SupremeFX High Definition Audio CODEC S1220
Audio Channels8 Channels
LAN ChipsetIntel I219-V
Max LAN Speed1Gbps
HDMI1 x HDMI
RJ451 x RJ45
DisplayPort1 x DisplayPort
USB 3.14 x USB 3.1 Gen 1 ports [blue] 2 x USB 3.1 Gen 2 ports (1 x Type-A [red] and 1 x Type-C [black])
USB 1.1/2.02 x USB 2.0 ports [black]
S/PDIF Out1 x Optical
Audio Ports5 x Gold-plated audio jacks
Onboard USB1 x USB 3.1 Gen2 front panel connector 1 x USB 3.1 Gen1 header supports additional 2 USB 3.1 Gen1 ports 2 x USB 2.0 header support additional 4 USB 2.0 ports
Other Connectors1 x Aura Addressable Strip Header(s)2 x Aura RGB Strip Headers1 x TPM 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 H_AMP fan connector 1 x W_PUMP+ connector (1 x 4-pin)1 x Front panel audio connector(s) (AAFP)1 x MemOK! button(s)1 x Slow Mode switch(es)1 x Reset button(s)1 x LN2 Mode jumper(s)1 x Safe Boot button1 x ReTry button1 x System panel connector3 x 3D Mount screw port(s)1 x EXT_Fan header1 x W_IN header1 x W_OUT header1 x W_FLOW header1 x Thermal sensor c
Form FactorATX
LED LightingRGB
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin EATX Power connector(s)1 x 8-pin ATX 12V Power connector(s)
FeaturesMulti-GPU Support:Supports NVIDIA 2-Way SLI Technology Supports AMD 3-Way CrossFireX TechnologyROG Exclusive Features:ROG RAMCache IIROG CPU-ZROG CloneDrivePre-mounted I/O ShieldMemOK! ButtonSlow ModeOverwolfGameFirst IVExtreme Engine Digi+:- MicroFine Alloy Chokes- NexFET Power Block MOSFET- 10K Black Metallic CapacitorsMem TweakItROG Extreme OC kit:- ReTry button- Safe Boot button- Start button- Reset button- LN2 Mode KeyBot II- One-click Overclocking- X.M.P.- DirectKey- ClrCMOS- Power OnUEFI BIOS features:- O.C. Profile- Tweakers' Paradise- ROG SSD Secure EraseROG RAMDiskExtreme T
Package ContentsAccessories:User's manual4 x SATA 6Gb/s cable(s)1 x M.2 Screw Package1 x CPU installation tool1 x Supporting DVD1 x MOS fan bracket kit1 x SLI HB BRIDGE (2-WAY-M)1 x ROG big sticker1 x Q-Connector1 x Extension Cable for RGB strips (80cm)1 x Extension cable for Addressable LED1 x 3D printing mount package1 x ROG coaster(s)

Questions about this item

How do I install an M.2 2280 drive into the M.2_1 Socket 3 with M Key, and what step is often missed?

Insert the drive at an angle into the M.2_1 slot, secure it with the supplied screw, and verify in BIOS whether the drive is running in PCIe 3.0 x4 or SATA mode, as the slot supports both and the mode affects which SATA ports remain usable.

What maintenance or replacement will the ROG SupremeFX S1220 audio codec need over time?

The S1220 codec is soldered to the board and requires no scheduled maintenance; if audio quality degrades, check for driver updates or inspect the rear-panel jacks for dust before considering a board-level repair.

Which limit appears first when the dual-channel DDR4 kit runs at 4133(O.C.) under sustained load?

The memory controller on the 8th Gen CPU and the board's power delivery set the practical ceiling; pushing 4133 MT/s continuously often hits thermal or voltage limits before the Z370 chipset itself becomes the bottleneck.

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