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mATX Motherboards

All motherboards

5 mATX motherboards from MSI, GIGABYTE, ASUS and more. Prices run $231 to $284.

All filtersFilters (2)×
Form factor: mATX  ×Chipset: AMD B450  ×Clear all
BrandGIGABYTE1
SocketAM44
Form factormATX5
Memory typeDDR44
Memory slots2241
Maximum memory64GB1
SATA ports41
ChipsetAMD B55017AMD B85013AMD B65012Intel B76010Intel H6109AMD A5207Intel B857AMD B4505
Show all 38Intel H815Intel X995AMD A6204AMD B650E3Intel B3653Intel Q6703AMD B8402Intel B752Intel H612Intel H972Intel W6802Intel Z4902AMD A3201AMD A68H1Intel B1501Intel B3601Intel B4601Intel B5601Intel B6601Intel B8601Intel C2621Intel C621A1Intel H1701Intel H3101Intel H4101Intel H8101Intel X791Intel Z1701Intel Z7901Intel Z8901
PriceUnder $2502Under $3004$75 & above4$100 & above4$200 & above4
Clear allShow 5 motherboards
Form factor: mATX  ×Chipset: AMD B450  ×5 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
Generic

AM4, mATX, DDR4, AMD B450

+Micro-ATX form factor fits smaller cases
+AM4 socket for Ryzen processors
+Built for DDR4 memory modules
−Micro-ATX layout offers fewer expansion slots than ATX
$284.60
as of 11/03/2026 23:07 PST - Details
Generic

AM4, mATX, 2 Memory slots, AMD B450

+AMD B450 chipset with AM4 socket
+Micro-ATX form factor
+Two RAM slots listed
−Only two RAM slots limit total memory expansion
$231.26
as of 11/04/2026 00:16 PST - Details
Generic

AM4, mATX, DDR4, 4 Memory slots

+Four DDR4 slots for expanding memory
+Micro-ATX form factor fits smaller builds
+Includes HDMI output for display connection
−Uses older DDR4 memory rather than DDR5
$268.12
as of 11/04/2026 00:16 PST - Details
GIGABYTESpec score 7.7

mATX, DDR4, 2 Memory slots, 64GB

+Supports up to 64GB of DDR4 memory
+Includes four SATA ports for storage drives
+Uses Micro-ATX form factor for compact builds
−Only two RAM slots limit total memory expansion
−Uses older B450 chipset
No price recorded yet.
Generic

AM4, mATX, DDR4, AMD B450

+AMD B450 chipset for AM4 Ryzen processors
+Micro-ATX form factor fits many standard cases
+Supports up to 128GB of DDR4 memory
$237.46
as of 11/04/2026 00:16 PST - Details

Compare specs

motherboardSocketForm factorMemory typeChipsetSpec scorePrice
AM4mATXDDR4AMD B450n/a$284.60
as of 11/03/2026 23:07 PST - Details
AM4mATXAMD B450n/a$231.26
as of 11/04/2026 00:16 PST - Details
AM4mATXDDR4AMD B450n/a$268.12
as of 11/04/2026 00:16 PST - Details
mATXDDR4AMD B4507.7No current price
AM4mATXDDR4AMD B450n/a$237.46
as of 11/04/2026 00:16 PST - Details

Before you buy

Other Form factor options

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Popular filters

DDR4 Motherboards199DDR5 Motherboards190ATX Motherboards165Motherboards under $200112Motherboards under $150109AM5 Motherboards99Motherboards with 4 Memory Slots96Motherboards with 2.5G LAN89

Motherboards by use

Gaming Motherboards81LGA1700 DDR5 Motherboards47Budget Motherboards58Workstation Motherboards60

Related product types

ATX Motherboards165ITX Motherboards41E-ATX Motherboards17

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.