ASUS PRIME B550M-A/CSM vs PRIME H810M-A-CSM Motherboard Comparison

ASUS PRIME B550M-A/CSM and Asus PRIME H810M-A-CSM are both motherboards with the same Form factor (Micro ATX), PCI-Express x16 Slots (1) and SATA 6 Gbps Ports (4). The main differences are in Socket, Chipset, Supported Memory and ECC RAM Support.

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ASUS PRIME B550M-A/CSM	Asus PRIME H810M-A-CSM
Prices (Change region) In Stock $109.99 In Stock Free shipping $314.36	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 B550M-A/CSM 90MB14I0-M0AAYC	Model PRIME H810M-A-CSM 90MB1KK0-M0AAYC
Release Date 📅 June 2020	Release Date 📅 January 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★☆ (16 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 AM4	Socket LGA1851
Form factor Micro ATX	Form factor Micro ATX
Chipset AMD B550	Chipset Intel H810
Supported Memory DDR4 2133Mhz 2400Mhz 2666Mhz 2800Mhz 3000Mhz 3200Mhz 3333Mhz 3466Mhz 3600Mhz 3733Mhz 3866Mhz 4000Mhz 4133Mhz 4266Mhz 4400Mhz 4600Mhz	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 Yes * ECC memory support also depends on the CPU memory controller	ECC RAM Support No
Audio Chipset Realtek ALC887	Audio Chipset -
Audio Channels 7.1 Channels	Audio Channels Realtek 7.1 Surround Sound High Definition Audio CODEC
LAN Chipset Realtek RTL8111H	LAN Chipset -
Max LAN Speed 10/100/1000Mbps	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 2 x USB 3.2 Gen 2 ports (2 x Type-A) 4 x USB 3.2 Gen 1 ports (4 x Type-A) 1 x D-Sub port 1 x DVI-D port 1 x HDMI port 1 x Realtek RTL8111H 1Gb Ethernet port 3 x Audio jacks 1 x PS/2 Keyboard/Mouse combo port	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 1	PCI-Express x16 Slots 1
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 2	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 2	M.2 Ports 3
M.2 Devices support 2242 / 2260 / 2280 / 22110 - M Key 2242 / 2260 / 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 128 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 0	Onboard USB 3.2 Gen 2 1
Onboard USB 3.2 Gen 2x2 0	Onboard USB 3.2 Gen 2x2 0