Biostar A320MH vs B550MH Motherboard Comparison

Biostar A320MH and BIOSTAR B550MH are both motherboards with the same Socket (AM4), Form factor (Micro ATX) and PCI-Express x16 Slots (1). The main differences are in Chipset, Supported Memory, M.2 Ports and Maximum Supported RAM.

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Biostar A320MH	BIOSTAR B550MH
Prices (Change region) Out of Stock Free shipping $60.99 Out of Stock + $20.00 Shipping $43.99 - Buy now	Prices (Change region) Out of Stock + $19.00 Shipping $114.47 - Buy now
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Brand Biostar	Brand Biostar
Model A320MH	Model B550MH
Release Date 📅 August 2020	Release Date 📅 January 2021
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★★ (3 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 AM4
Form factor Micro ATX	Form factor Micro ATX
Chipset AMD A320	Chipset AMD B550
Supported Memory DDR4 1866Mhz 2133Mhz 2400Mhz 2666Mhz 2933Mhz	Supported Memory DDR4 1866Mhz 2133Mhz 2400Mhz 2666Mhz 2933Mhz 3200Mhz 3600Mhz 3800Mhz 4000Mhz 4400Mhz
* 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 ALC887	Audio Chipset -
Audio Channels 7.1 Channels	Audio Channels -
LAN Chipset Realtek RTL8111H	LAN Chipset -
Max LAN Speed 10/100/1000Mbps	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 PS/2 Keyboard/Mouse 2 x USB 3.2 Gen1 Ports 4 x USB 2.0 Ports 1 x HDMI Connector resolution up to 4096 x 2160 @24Hz or 3840 x 2160 @30Hz 1 x VGA Port resolution up to 1920 x 1200 @60Hz 1 x LAN Port 3 x Audio Jacks	Back I/O Ports -
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 2
SATA 6 Gbps Ports 4	SATA 6 Gbps Ports 4
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 0	M.2 Ports 1
M.2 Devices support -	M.2 Devices support 2242 / 2260 / 2280 - M Key
RAM Slots 2	RAM Slots 2
Maximum Supported RAM 32 GB	Maximum Supported RAM 64 GB
Onboard USB 2.0 2	Onboard USB 2.0 2
Onboard USB 3.2 Gen 1 1	Onboard USB 3.2 Gen 1 2
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

Comparison and key differences summary

Reasons to buy the Biostar A320MH:

47% cheaper, you can save $53.48

Buy now

Reasons to buy the BIOSTAR B550MH:

Supports the following RAM types: DDR4 3200MHz, 3600MHz, 3800MHz, 4000MHz, 4400MHz
+1 Ports M.2
+32 GB maximum RAM supported
+1 Onboard USB 3.2 Gen 1

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