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Motherboard	$498⁰⁰	$458¹⁴
Chipset	Intel Z890	Intel B860
Socket	LGA1851	LGA1851
Form Factor	Mini-ITX	ATX
Max Memory	128 GB	256 GB
Memory Type	DDR5	DDR5
Memory Slots	2	4
ECC Memory Support	Yes	No
PCIe x16 Slots	1	2
PCIe x16 4.0 Slots	0	2
PCIe x16 5.0 Slots	1	0
M.2 Slots	2	6
M.2 Slot Specifics	2230/2242/2260/2280M (PCIe5.0x4) 2230/2242/2260/2280M (PCIe5.0x4)	2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4) 2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4) 2242-2260M (PCIe4.0x4) 2280M (PCIe4.0x4)
SATA Ports	2	4
USB 2.0 Headers	1	2
USB 3.2 Headers	1	1
USB 3.2 (Gen 2) Headers	0	1
WiFi	802.11 ax	802.11 ax
Bluetooth	5.4	-
Ethernet Speed	2.5 Gbps	2.5 Gbps
Audio Chipset	Realtek	Realtek
Audio Channels	7.1	7.1
Optical S/PDIF Out	No	No
BIOS Flashback	Yes	No
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 ROG STRIX Z890-I GAMING WIFI Mini ITX vs B860 PRIME-PLUS-CSM reveals distinct differences in their targeted use cases.

The B860 PRIME-PLUS-CSM is the more budget-friendly option, costing approximately $40 (9%) less than the ROG STRIX Z890-I GAMING WIFI Mini ITX.