MSI X570-A PRO vs B550M-A PRO Motherboard Comparison

MSI X570-A PRO and MSI B550M-A PRO are both motherboards with the same Socket (AM4), LAN Chipset (Realtek RTL8111H) and Max LAN Speed (10/100/1000Mbps). The main differences are in Form factor, Chipset, Supported Memory and Audio Chipset.

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MSI X570-A PRO	MSI B550M-A PRO
Prices (Change region) In Stock Free shipping $160.56	Prices (Change region) Out of Stock Free shipping $94.99 Out of Stock Free shipping $94.99 Out of Stock + $3.99 Shipping $94.99 Out of Stock Free shipping $130.73 - Buy now Show 2 more offers
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Brand MSI	Brand MSI
Model X570-A PRO 7C37-003R	Model b550m-a pro
Release Date 📅 July 2019	Release Date 📅 November 2020
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★☆ (10 reviews) Add a product review	User reviews ★★★★☆ (4 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 PRO	Series PRO
Socket AM4	Socket AM4
Form factor ATX	Form factor Micro ATX
Chipset AMD X570	Chipset AMD B550
Supported Memory DDR4 1866Mhz 2133Mhz 2400Mhz 2666Mhz 2800Mhz 2933Mhz 3000Mhz 3200Mhz 3466Mhz 3600Mhz 3733Mhz 3866Mhz 4000Mhz 4133Mhz 4266Mhz 4400Mhz	Supported Memory DDR4 1866Mhz 2133Mhz 2400Mhz 2666Mhz 2800Mhz 2933Mhz 3000Mhz 3200Mhz 3466Mhz 3600Mhz 3733Mhz 3866Mhz 4000Mhz 4133Mhz 4266Mhz 4400Mhz 4600Mhz
* 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 Chipset Realtek ALC1220	Audio Chipset Realtek ALC892/ALC897 Codec
Audio Channels 7.1-Channel High Definition Audio Supports S/PDIF output	Audio Channels 7.1 Channels
LAN Chipset Realtek RTL8111H	LAN Chipset Realtek RTL8111H
Max LAN Speed 10/100/1000Mbps	Max LAN Speed 10/100/1000Mbps
SLI Support No	SLI Support No
CrossFire Support Yes	CrossFire Support No
RAID Support Yes	RAID Support Yes
Back Connect No	Back Connect No
Back I/O Ports 1 x Flash BIOS Button 1 x PS/2 keyboard/mouse combo port 2 x USB 2.0 ports 1 x HDMI port 4 x USB 3.2 Gen1 ports 1 x LAN (RJ45) port 1 x USB 3.2 Gen2 Type A port 1 x USB 3.2 Gen2 Type C port 5 x OFC audio jacks 1 x Optical S/PDIF OUT connector	Back I/O Ports 1 x DVI-D 1 x HDMI 1 x LAN (RJ45) 2 x PS/2 2 x USB 2.0/1.1 3 x Audio Jacks 4 x USB 3.2 Gen 1
Wireless LAN No	Wireless LAN No
PCI-Express x16 Slots 2	PCI-Express x16 Slots 1
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 3	PCI-Express x1 Slots 1
SATA 6 Gbps Ports 6	SATA 6 Gbps Ports 4
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 2	M.2 Ports 1
M.2 Devices support 2242 / 2260 / 2280 / 22110 - M Key 2242 / 2260 / 2280 - M Key	M.2 Devices support 2242 / 2260 / 2280 - M Key
RAM Slots 4	RAM Slots 2
Maximum Supported RAM 128 GB	Maximum Supported RAM 64 GB
Onboard USB 2.0 2	Onboard USB 2.0 2
Onboard USB 3.2 Gen 1 2	Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 0	Onboard USB 3.2 Gen 2 0
Onboard USB 3.2 Gen 2x2 0	Onboard USB 3.2 Gen 2x2 0