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Motherboard	$458¹⁴	$414⁹⁷
Chipset	Intel B860	Intel Z890
Socket	LGA1851	LGA1851
Form Factor	ATX	ATX
Max Memory	256 GB	192 GB
Memory Type	DDR5	DDR5
Memory Slots	4	4
ECC Memory Support	No	No
PCIe x16 Slots	2	2
PCIe x16 4.0 Slots	2	2
PCIe x1 Slots	0	1
M.2 Slots	6	12
M.2 Slot Specifics	2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4) 2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4) 2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4)	2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4) 2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4) 2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4) 2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4) 2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4) 2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4)
SATA Ports	4	0
USB 2.0 Headers	2	2
USB 3.2 Headers	1	2
USB 3.2 (Gen 2) Headers	1	1
WiFi	802.11 ax	802.11 ax
Ethernet Speed	2.5 Gbps	5 Gbps
Audio Chipset	Realtek	Realtek
Audio Channels	7.1	7.1
Optical S/PDIF Out	No	Yes
BIOS Flashback	No	Yes
Color	Dark	Dark
Supported CPUs	Intel Core Ultra Series 2	Intel Core Ultra Series 2
M.2 Heatsink/Shields	No	-
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Comparison Analysis

Comparing the B860 PRIME-PLUS-CSM vs Z890 ROG MAXIMUS HERO reveals distinct differences in their targeted use cases.

The Z890 ROG MAXIMUS HERO is the more budget-friendly option, costing approximately $43 (10%) less than the B860 PRIME-PLUS-CSM.