ROG Crosshair X870E Dark Hero

Released January 2026.3 Last checked 15 October 2026.

67 of 78 fields known.

At a glance

SourceCalculatedHide missing

CPU socket: AM51
Chipset: AMD X870E1
Supported processors: AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series1
CPU overclocking: Yes2 9

Front and side, drawn to scale.

Expansion slots: Physical slot Electrical lanes PCIe generation Connected to Count
PCIe x16 16 5 CPU 1
PCIe x16 8 5 CPU 1
Source1 3
Full-length PCIe slots: 2
Fastest PCIe x16 slot generation: 5

Physical slot	Electrical lanes	PCIe generation	Connected to	Count
PCIe x16	16	5	CPU	1
PCIe x16	8	5	CPU	1

M.2 storage slots: Slot PCIe generation PCIe lanes Connected to Longest drive Takes SATA drives Heatsink Shares lanes with
M.2_1 5 4 CPU M.2 22110 No Yes Not available
M.2_2 5 4 CPU M.2 2280 No Yes The USB4 40Gbps ports. A drive in M.2_2 makes both run at x2. Setting M.2_2 to x4 in the BIOS turns the USB4 ports off
M.2_3 4 4 Chipset M.2 2280 No Yes Not available
M.2_4 4 4 Chipset M.2 2280 No Yes Not available
M.2_5 4 2 Chipset M.2 2230 No Yes Not available
Source1
M.2 slots: 5
PCIe 5.0 M.2 slots: 2
SATA ports: 41

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink	Shares lanes with
M.2_1	5	4	CPU	M.2 22110	No	Yes	Not available
M.2_2	5	4	CPU	M.2 2280	No	Yes	The USB4 40Gbps ports. A drive in M.2_2 makes both run at x2. Setting M.2_2 to x4 in the BIOS turns the USB4 ports off
M.2_3	4	4	Chipset	M.2 2280	No	Yes	Not available
M.2_4	4	4	Chipset	M.2 2280	No	Yes	Not available
M.2_5	4	2	Chipset	M.2 2230	No	Yes	Not available

Rear ports: Type Version Count Max link rate (Gbps) Thunderbolt or USB4 DP Alt Mode
USB-C USB4 2 40 USB4 Yes
USB-C USB 3.2 Gen 2 3 10 Not available Not available
USB-A USB 3.2 Gen 2 6 10 Not available Not available
HDMI HDMI 2.1 1 Not available Not available Not available
Ethernet (RJ45) Not available 1 10 Not available Not available
Ethernet (RJ45) Not available 1 5 Not available Not available
3.5 mm audio Not available 2 Not available Not available Not available
Optical S/PDIF Not available 1 Not available Not available Not available
Source1
Rear USB ports: 11
Rear USB-C ports: 5
Fastest rear USB port: 40Gbps
Thunderbolt: No

Type	Version	Count	Max link rate (Gbps)	Thunderbolt or USB4	DP Alt Mode
USB-C	USB4	2	40	USB4	Yes
USB-C	USB 3.2 Gen 2	3	10	Not available	Not available
USB-A	USB 3.2 Gen 2	6	10	Not available	Not available
HDMI	HDMI 2.1	1	Not available	Not available	Not available
Ethernet (RJ45)	Not available	1	10	Not available	Not available
Ethernet (RJ45)	Not available	1	5	Not available	Not available
3.5 mm audio	Not available	2	Not available	Not available	Not available
Optical S/PDIF	Not available	1	Not available	Not available	Not available

Internal USB headers: Header Max data rate (Gbps) Headers Front ports served Power out (W)
USB-C header 20 1 1 60
USB-C header 20 1 1 15
USB 3 header (19-pin) 5 2 4 Not available
USB 2.0 header (9-pin) 0.48 3 6 Not available
Source1
Front USB-C header speed: 20Gbps
Fan headers: 81 3 7
ARGB headers: 31 3
RGB headers: 01

Header	Max data rate (Gbps)	Headers	Front ports served	Power out (W)
USB-C header	20	1	1	60
USB-C header	20	1	1	15
USB 3 header (19-pin)	5	2	4	Not available
USB 2.0 header (9-pin)	0.48	3	6	Not available

BIOS flashback: Yes1 5
Clear CMOS button (rear): Yes1 5
POST code display: Yes1 2 5
Power button on the board: Yes1 5
Dual BIOS: Not available
Pre-installed I/O shield: Yes1
Tool-free features: Tool-free M.2 latch, Tool-free M.2 heatsink, PCIe slot release, Push-on antenna connector1 2

In the box: 4 x SATA 6Gb/s cables, 1 x DDR5 fan holder, 1 x ROG assistant fan (60mm), 1 x Screw package for cooling kit, 1 x Thermal pad for M.2 22110, 1 x ASUS WiFi Q-Antenna, 1 x Q-connector, 3 x M.2 Q-Slide package, 5 x M.2 backplate rubber packages, 1 x ROG stickers, 1 x ROG VIP card, 1 x ROG Bottle Opener, 1 x Quick start guide1