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Dark ATX motherboard with black heatsinks and silver I/O shield

ASUS

ASUS ROG Crosshair VIII Dark Hero AMD motherboard AM4 ATX 128GB DDR4

SKU CH-HPAB-V9XT0

AM4 ATX motherboard supports 128 GB DDR4 and Ryzen 2nd and 3rd Gen CPUs

  • CPU socketAM4
  • Form factorATX
  • Memory slot countDDR4
  • Max supported RAM128 GB
  • PCIe 3.0 x16 slots1x PCI Express 3.0 x16
  • PCIe x16 slots1
  • Supports up to 128GB DDR4 memory
  • Single PCI Express 3.0 x16 slot for graphics
  • One USB 3.1 Gen 2 Type-A rear port
  • Gigabit LAN via RJ45 connector
  • ATX form factor fits standard cases

AM4 ATX motherboard with 128 GB DDR4 support

The ASUS ROG Crosshair VIII Dark Hero is an ATX motherboard built for AMD Socket AM4 processors. It accepts second and third generation Ryzen CPUs without a BIOS update, offering four DDR4 slots for up to 128 GB of memory. The board provides one PCI Express 3.0 x16 slot and a single PCI slot for expansion.

Upgrade from first generation Ryzen or older boards

This board replaces motherboards that only support first generation Ryzen processors such as the 1300, 1400, 1500, 1600 or 1700 series, which are not compatible even with a BIOS update. The jump is worthwhile when moving to a 2200G, 2600, 3600, 3700X, 3900X or 3950X CPU for higher core counts and newer architecture.

PCI Express 3.0 and USB 3.1 Gen 2 rear I/O limits

The single graphics slot runs at PCI Express 3.0 speeds, so newer GPUs that benefit from PCI Express 4.0 will operate at the lower bandwidth. Rear I/O includes one USB 3.1 Gen 2 Type-A port and one RJ45 LAN connection, limiting high-speed peripheral and network expansion without add-in cards.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $334.99
Pricier than about 59% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Product lineROG
Model nameROG CROSSHAIR VIII DARK HERO
Processor
CPU socketAM4
Memory
Memory slot countDDR4
Max supported RAM128 GB
Ports & slots
PCIe 3.0 x16 slots1x PCI Express 3.0 x16
PCIe x16 slots1
PCI slots1 x PCI Slot
Rear panel ports1 x LAN (RJ45) / 1 x USB 3.1 Gen 2 Type-A
Ethernet port1 x RJ45
USB 3.1 ports1 x USB 3.1
Size & build
Form factorATX

Questions about this item

What size case and power connectors does the ATX form factor and AM4 socket require?

The board fits a standard ATX chassis and uses the AM4 socket mounting pattern; ensure your case has the ATX standoff layout and the CPU cooler matches AM4 retention holes.

How do I install the board when only the motherboard and I/O shield are supplied?

Mount the supplied I/O shield first, then lower the board onto ATX standoffs and secure it with screws; the step often missed is forgetting the shield before the board is fixed in place.

What memory upgrades will this board accept later?

Four DDR4 slots support up to 128 GB total; add matching DDR4 modules in pairs for best stability.

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