ASUS Prime B860M-A WiFi-CSM vs ROG STRIX B860-A GAMING WIFI Motherboard Comparison

ASUS Prime B860M-A WiFi-CSM and Asus ROG STRIX B860-A GAMING WIFI are both motherboards with the same Socket (LGA1851), Chipset (Intel B860) and Supported Memory (DDR5-4800 / 8600). The main differences are in Form factor, Wireless LAN, PCI-Express x1 Slots and M.2 Ports.

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ASUS Prime B860M-A WiFi-CSM	Asus ROG STRIX B860-A GAMING WIFI
Prices (Change region) In Stock $169.99 Last updated 53 minutes ago. In Stock $169.99 In Stock Free shipping $169.99 In Stock Free shipping $169.99 Show 1 more offers	Prices (Change region) There are no offers available in your selected region. Other merchants are available in another region. Out of Stock Free shipping €224.35 In Stock Free shipping €228.50 In Stock Free shipping €228.73 In Stock + €4.99 Shipping €235.90 In Stock Free shipping €244.00 In Stock + €5.99 Shipping €244.70 In Stock Free shipping €254.29 Out of Stock Free shipping €259.55 In Stock + €4.99 Shipping €283.35 Show 6 more offers
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Brand ASUS	Brand Asus
Model PRIME B860M-A WIFI-CSM 90MB1JY0-M0AAYC	Model ROG STRIX B860-A GAMING WIFI
Release Date 📅 January 2025	Release Date 📅 January 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Price history View Details ►	Price history View Details ►
Compatible PC parts Processors ► Memory ► Cases ► CPU Coolers ►	Compatible PC parts Processors ► Memory ► Cases ► CPU Coolers ►
Series Prime	Series -
Socket LGA1851	Socket LGA1851
Form factor Micro ATX	Form factor ATX
Chipset Intel B860	Chipset Intel B860
Supported Memory DDR5 4800Mhz 8600Mhz	Supported Memory DDR5 4800Mhz 8600Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS ** RAM support may also depend on the CPU memory controller
ECC RAM Support No	ECC RAM Support No
Audio Channels Realtek 7.1 Surround Sound High Definition Audio CODEC	Audio Channels -
Max LAN Speed 1 x Realtek 2.5Gb EthernetASUS LANGuard	Max LAN Speed -
SLI Support No	SLI Support No
CrossFire Support No	CrossFire Support No
RAID Support Yes	RAID Support Yes
Back Connect No	Back Connect No
Back I/O Ports 1 x USB 20Gbps port (1 x USB Type-C) 1 x USB 10Gbps port (1 x Type-A) 2 x USB 5Gbps ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A ) 2 x DisplayPort 1 x HDMI™ port 1 x Wi-Fi module 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks	Back I/O Ports -
Wireless LAN No	Wireless LAN Yes
Wi-Fi Generation -	Wi-Fi Generation 7
PCI-Express x16 Slots 2	PCI-Express x16 Slots 2
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 1	PCI-Express x1 Slots 0
SATA 6 Gbps Ports 4	SATA 6 Gbps Ports 4
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 2	M.2 Ports 4
M.2 Devices support 2242 / 2260 / 2280 - M Key 2242 / 2260 / 2280 - M Key	M.2 Devices support 2242 / 2260 / 2280 - M Key 2280 - M Key 2280 / 22110 - M Key 2280 - M Key
RAM Slots 4	RAM Slots 4
Maximum Supported RAM 256 GB	Maximum Supported RAM 256 GB
Onboard USB 2.0 1	Onboard USB 2.0 1
Onboard USB 3.2 Gen 1 1	Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 1	Onboard USB 3.2 Gen 2 1
Onboard USB 3.2 Gen 2x2 0	Onboard USB 3.2 Gen 2x2 0