The ASUS B860M MAX GAMING AX is a Micro-ATX motherboard designed for enthusiast-level gaming builds. Built around the Intel B860 chipset and compatible with Intel Core Ultra Series 2 processors via Socket 1851, this board offers a solid foundation for high-performance computing. It supports up to 256GB of DDR5 memory across four DIMM slots in dual-channel configuration, with overclocked speeds reaching up to 8666 MHz. The board measures 244 x 244 mm and comes in a grey finish, making it a versatile fit for a wide range of gaming cases.
Expansion and Storage Options
The ASUS B860M MAX GAMING AX provides extensive storage and expansion capabilities. It features three M.2 slots, with the primary slot supporting PCIe 5.0 and the remaining two running on PCIe 4.0, all accommodating drives up to 2280 in size. Four SATA III connectors offer additional storage flexibility. On the expansion side, the board includes one PCIe 5.0 x16 slot alongside three PCIe 4.0 x16 slots, catering to a variety of add-in cards and multi-GPU configurations.
Connectivity and Audio
This motherboard delivers strong connectivity across both wired and wireless options. Networking is handled by a Realtek 2.5GbE LAN chip along with integrated Wi-Fi 6 (802.11ax) and Bluetooth 5.3. USB connectivity includes multiple USB 3.2 Gen 1 and Gen 2 ports in both Type-A and Type-C formats. Audio is powered by a Realtek 7.1 Surround Sound HD Audio CODEC, complemented by S/PDIF output. A DisplayPort 1.4 output supports resolutions up to 3840 x 2160 pixels.
Product number manufacturer:
90MB1JZ0-M0EAY0
Audio
Realtek 7.1 Surround Sound HD Audio CODEC
BIOS
Connectivity
USB 3.2 (Gen 1) type A ports:
5
USB 3.2 (Gen 2) type A ports:
1
USB 3.2 (Gen 2) type C ports:
1
Energy management
Internal I/O
1st M.2 maximum slot size:
2280
1st M.2 slot PCI Express generation:
5.0
2nd M.2 maximum slot size:
2280
2nd M.2 slot PCI Express generation:
4.0
3rd M.2 maximum slot size:
2280
3rd M.2 slot PCI Express generation:
4.0
ATX Power connector (24-pin):
Chassis fan connector(s):
4
Chassis intrusion connector:
EPS power connector (8-pin):
Front panel audio connector:
USB 3.1 (3.1 Gen 2) connectors:
1
USB 3.1 (Gen 1) header(s):
1
Memory
Supported memory clock speeds (OC):
8666 (OC) MHz
Networking
Network technology (wired):
Packaging content
Physical characteristics
Processor
Compatible processor series:
Intel Core Ultra Series 2
Sockets
Technical details
Video
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