Asus PRIME B840M-A-CSM vs PRIME H810M-A-CSM Motherboard Comparison

Asus PRIME B840M-A-CSM and Asus PRIME H810M-A-CSM are both motherboards with the same Form factor (Micro ATX), SATA 6 Gbps Ports (4) and M.2 Ports (3). The main differences are in Socket, Chipset, Supported Memory and RAID Support.

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Asus PRIME B840M-A-CSM	Asus PRIME H810M-A-CSM
Prices (Change region) Out of Stock Free shipping $246.99	Prices (Change region) In Stock $129.99 Out of Stock Free shipping $129.99 Out of Stock $136.99 In Stock Free shipping $147.61 Show 1 more offers
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Brand Asus	Brand Asus
Model PRIME B840M-A-CSM	Model PRIME H810M-A-CSM 90MB1KK0-M0AAYC
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 ►
Socket AM5	Socket LGA1851
Form factor Micro ATX	Form factor Micro ATX
Chipset AMD B840	Chipset Intel H810
Supported Memory DDR5 4400Mhz 7600Mhz	Supported Memory DDR5 4800Mhz 6400Mhz
* 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 -	Audio Channels Realtek 7.1 Surround Sound High Definition Audio CODEC
Max LAN Speed -	Max LAN Speed 1Gbps
SLI Support No	SLI Support No
CrossFire Support No	CrossFire Support No
RAID Support Yes	RAID Support No
Back Connect No	Back Connect No
Back I/O Ports -	Back I/O Ports 2 x USB 10Gbps ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A) 1 x DisplayPort 1 x HDMI port 1 x Wi-Fi module 1 x Intel 1Gb Ethernet port 3 x Audio jacks 1 x PS/2 keyboard/mouse combo port
Wireless LAN No	Wireless LAN No
PCI-Express x16 Slots 3	PCI-Express x16 Slots 1
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 0	PCI-Express x1 Slots 1
SATA 6 Gbps Ports 4	SATA 6 Gbps Ports 4
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 3	M.2 Ports 3
M.2 Devices support 2280 - M Key 2242 / 2260 / 2280 - M Key 2280 - M Key	M.2 Devices support 2280 - M Key 2242 / 2260 / 2280 - M Key 2230 - E Key
RAM Slots 4	RAM Slots 2
Maximum Supported RAM 192 GB	Maximum Supported RAM 128 GB
Onboard USB 2.0 2	Onboard USB 2.0 1
Onboard USB 3.2 Gen 1 1	Onboard USB 3.2 Gen 1 0
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