AM4, mATX, DDR4, 4 Memory slots
mATX Motherboards
17 mATX motherboards from MSI, GIGABYTE, ASUS and more. Most cost $75 to $446, and half cost less than $117.
Spec score 7.9
+Micro-ATX size is compact for smaller cases
+Four RAM slots supporting DDR4 memory
+Two M.2 slots for fast storage
−No built-in Wi-Fi
$74.99-25%List: $99.99
as of 11/03/2026 23:11 PST - DetailsProduct details
GIGABYTE B550M K AMD AM4 Micro-ATX Motherboard, Supports Ryzen 5000/4000/3000 Series Processors, DDR4, 3+3 Power Phase,
$74.99as of 11/03/2026 23:11 PST - Details
View on AmazonSpec score7.9
Pros
+Micro-ATX size is compact for smaller cases
+Four RAM slots supporting DDR4 memory
+Two M.2 slots for fast storage
Cons−No built-in Wi-Fi
Compared with the 17 motherboards on this page+4 memory slots: only 2 of 65 here have more memory slots
+2 m.2 slots: only 3 of 59 here have more m.2 slots
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)Other stores (1)
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Spec score 8.1
AM4, mATX, DDR4, 1 PCIe x16 slots
+Compact microATX form factor
+DDR4 memory with ECC support
+PCIe 4.0 support
−Single PCIe x16 slot limits graphics card expansion
$99.00-17%List: $119.99
as of 11/04/2026 12:09 PST - DetailsProduct details
ASUS Prime B550M-A WiFi II AMD Micro ATX DDR4 Motherboard with PCIe 4.0, WiFi 6, ECC Memory, HDMI 2.1, RGB Header
$99.00as of 11/04/2026 12:09 PST - Details
View on AmazonSpec score8.1
Pros
+Compact microATX form factor
+DDR4 memory with ECC support
+PCIe 4.0 support
+Two M.2 slots for SSD storage
+Wi-Fi 6 built in
Cons−Single PCIe x16 slot limits graphics card expansion
Compared with the 17 motherboards on this page+2 m.2 slots: only 3 of 59 here have more m.2 slots
+1 pcie x16 slots: only 4 of 33 here have more pcie x16 slots
−Wi-Fi 6: 28 of the 37 here have a higher wi-fi
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)Other stores (1)
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About this product
AM4, mATX, DDR4, Wi-Fi 6E
+Compact mATX form factor
+Wi-Fi 6E wireless built in
+AM4 socket supports AMD Ryzen 5000 series processors
−Uses DDR4 memory rather than newer DDR5
$109.99-8%List: $119.99
as of 11/04/2026 00:18 PST - DetailsProduct details
MSI PRO B550M-VC WiFi ProSeries Motherboard (AMD Ryzen 5000 Series, AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen
$109.99as of 11/04/2026 00:18 PST - Details
View on AmazonPros
+Compact mATX form factor
+Wi-Fi 6E wireless built in
+AM4 socket supports AMD Ryzen 5000 series processors
+DDR4 memory support
Cons−Uses DDR4 memory rather than newer DDR5
Compared with the 17 motherboards on this page+Wi-Fi 6E: only 7 of 37 here have a higher wi-fi
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About this product
Spec score 7.6
AM4, mATX, DDR4, 2 Memory slots
+Micro-ATX form factor fits compact builds
+Supports AMD Ryzen 3000, 4000 and 5000 processors
+Supports DDR4 memory with overclocking up to 4733 MHz
−Only two RAM slots limit total memory capacity
$69.99
as of 11/04/2026 12:09 PST - DetailsProduct details
ASRock B550M-HDV Socket AM4 Micro-ATX Motherboard, Supports AMD Ryzen 5000/4000/3000 Series Processors, DDR4 4733+(OC),
$69.99as of 11/04/2026 12:09 PST - Details
View on AmazonSpec score7.6
Pros
+Micro-ATX form factor fits compact builds
+Supports AMD Ryzen 3000, 4000 and 5000 processors
+Supports DDR4 memory with overclocking up to 4733 MHz
+Includes one M.2 slot for fast storage
+Four SATA ports for additional drives
Cons−Only two RAM slots limit total memory capacity
Compared with the 17 motherboards on this page−1 m.2 slots: 41 of the 59 here have more m.2 slots
−2 memory slots: 43 of the 65 here have more memory slots
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)About this product
AM4, mATX, DDR4, 128GB
+Supports up to 128GB of memory
+PCIe 4.0 support for newer graphics cards and storage
+Micro-ATX form factor fits smaller builds
−Uses older DDR4 memory rather than DDR5
$89.99
as of 11/04/2026 00:18 PST - DetailsProduct details
MSI B550M PRO-VDH WiFi ProSeries Motherboard (AMD Ryzen 5000, AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 1,
$89.99as of 11/04/2026 00:18 PST - Details
View on AmazonPros
+Supports up to 128GB of memory
+PCIe 4.0 support for newer graphics cards and storage
+Micro-ATX form factor fits smaller builds
+AM4 socket supports Ryzen 5000 series processors
Cons−Uses older DDR4 memory rather than DDR5
Compared with the 17 motherboards on this page+128GB maximum memory: only 1 of 22 here have a higher maximum memory
How pros and cons are picked (About: Disclaimer)Other stores (1)
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Spec score 8.2
AM4, mATX, DDR4, 2 M.2 slots
+2 m.2 slots: only 3 of 59 here have more m.2 slots
−Wi-Fi 6: 28 of the 37 here have a higher wi-fi
$93.98
as of 11/04/2026 12:09 PST - DetailsProduct details
ASUS Prime B550M-K WiFi AM4 mATX Motherboard, DDR4, PCIe 4.0, 2xM.2, WiFi 6 | 2x M.2 Slots, WiFi 6, AMD Ryzen Ready,
$93.98as of 11/04/2026 12:09 PST - Details
View on AmazonSpec score8.2
Compared with the 17 motherboards on this pagePros
+2 m.2 slots: only 3 of 59 here have more m.2 slots
Cons−Wi-Fi 6: 28 of the 37 here have a higher wi-fi
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)Other stores (1)
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About this product
Spec score 8.1
AM4, mATX, DDR4, 4 Memory slots
+Micro-ATX size is compact for smaller cases
+Wi-Fi 6 built in for wireless networking
+Four RAM slots supporting DDR4 memory
$126.00-19%List: $154.99
as of 11/03/2026 23:11 PST - DetailsProduct details
GIGABYTE B550M Gaming X WIFI6 AMD AM4 mATX Motherboard, Supports Ryzen 5000/4000/3000 Series, DDR4, 5+3 Power Phase, 2X
$126.00as of 11/03/2026 23:11 PST - Details
View on AmazonSpec score8.1
Pros
+Micro-ATX size is compact for smaller cases
+Wi-Fi 6 built in for wireless networking
+Four RAM slots supporting DDR4 memory
+Two M.2 slots for fast storage
+One PCIe x16 slot for a graphics card
Compared with the 17 motherboards on this page+4 memory slots: only 2 of 65 here have more memory slots
+2 m.2 slots: only 3 of 59 here have more m.2 slots
+1 pcie x16 slots: only 4 of 33 here have more pcie x16 slots
−Wi-Fi 6: 28 of the 37 here have a higher wi-fi
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)Other stores (1)
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About this product
Spec score 8.3
AM4, mATX, DDR4, 4 Memory slots
+Micro-ATX size is compact for smaller cases
+Wi-Fi 6E built in for wireless networking
+Four RAM slots supporting DDR4 memory
$138.99-7%List: $149.99
as of 11/03/2026 23:11 PST - DetailsProduct details
GIGABYTE B550M AORUS Elite AX (rev 1.3) AMD AM4 mATX Motherboard, Supports Ryzen 5000/4000/3000 Processors, DDR4, 5+3
$138.99as of 11/03/2026 23:11 PST - Details
View on AmazonSpec score8.3
Pros
+Micro-ATX size is compact for smaller cases
+Wi-Fi 6E built in for wireless networking
+Four RAM slots supporting DDR4 memory
+Two M.2 slots for fast storage
Compared with the 17 motherboards on this page+4 memory slots: only 2 of 65 here have more memory slots
+2 m.2 slots: only 3 of 59 here have more m.2 slots
+Wi-Fi 6E: only 7 of 37 here have a higher wi-fi
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)Other stores (1)
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About this product
Spec score 8.1
AM4, mATX, DDR4, 4 Memory slots
+Built-in Wi-Fi 6E for wireless networking
+Micro-ATX form factor fits smaller builds
+Four DDR4 slots for expanding memory
−Uses older DDR4 memory rather than DDR5
−Only one PCIe x16 slot
$116.98
as of 11/04/2026 00:18 PST - DetailsProduct details
MSI B550M Gaming Plus WIFI6E Motherboard, mATX-Supports AMD Ryzen 5000 Series,5000 G-Series 4000 G-Series,and 3000
$116.98as of 11/04/2026 00:18 PST - Details
View on AmazonSpec score8.1
Pros
+Built-in Wi-Fi 6E for wireless networking
+Micro-ATX form factor fits smaller builds
+Four DDR4 slots for expanding memory
+AM4 socket supports Ryzen 5000 and 3000 series processors
Cons−Uses older DDR4 memory rather than DDR5
−Only one PCIe x16 slot
Compared with the 17 motherboards on this page+4 memory slots: only 2 of 65 here have more memory slots
+1 pcie x16 slots: only 4 of 33 here have more pcie x16 slots
+Wi-Fi 6E: only 7 of 37 here have a higher wi-fi
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)Other stores (1)
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About this product
AM4, mATX, DDR4, Wi-Fi 6E
+Compact mATX form factor
+Wi-Fi 6E wireless built in
+AM4 socket supports AMD Ryzen 5000 series processors
−Uses DDR4 memory rather than newer DDR5
$118.95
as of 11/04/2026 00:18 PST - DetailsProduct details
MSI PRO B550M-P WIFI6E ProSeries Motherboard (AMD Ryzen 5000 Series, AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen
$118.95as of 11/04/2026 00:18 PST - Details
View on AmazonPros
+Compact mATX form factor
+Wi-Fi 6E wireless built in
+AM4 socket supports AMD Ryzen 5000 series processors
+DDR4 memory support
Cons−Uses DDR4 memory rather than newer DDR5
Compared with the 17 motherboards on this page+Wi-Fi 6E: only 7 of 37 here have a higher wi-fi
How pros and cons are picked (About: Disclaimer)Other stores (9)
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About this product
Spec score 8.0
AM4, mATX, DDR4, 4 Memory slots
+Micro-ATX size is compact for smaller cases
+Wi-Fi 5 built in for wireless networking
+Four RAM slots supporting DDR4 memory
No current price. Check it at the store.
Product details
GIGABYTE B550M DS3H AC R2 AMD AM4 mATX Motherboard, Supports Ryzen 5000/4000/3000 Series Processors, DDR4, 5+3 PowerNo current price. Check it at the store.View on Amazon
Spec score8.0
Pros
+Micro-ATX size is compact for smaller cases
+Wi-Fi 5 built in for wireless networking
+Four RAM slots supporting DDR4 memory
+Two M.2 slots for fast storage
+One PCIe x16 slot for a graphics card
Compared with the 17 motherboards on this page+4 memory slots: only 2 of 65 here have more memory slots
+2 m.2 slots: only 3 of 59 here have more m.2 slots
+1 pcie x16 slots: only 4 of 33 here have more pcie x16 slots
−Wi-Fi 5: 34 of the 37 here have a higher wi-fi
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)Other stores (1)
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About this product
AM4, mATX, 4 Memory slots, AMD B550
+Micro-ATX form factor fits smaller cases
+AMD B550 chipset with AM4 socket for Ryzen processors
+Four DDR4 memory slots for larger memory configurations
−Micro-ATX layout offers fewer expansion slots than ATX
$446.16
as of 11/03/2026 23:07 PST - DetailsProduct details
Gaming Motherboard Fit for ASRock B550M PG Riptide Motherboard Support Ryzen 5 3600 5600 5700X3D 5800X3DCPU 4xDDR4
$446.16as of 11/03/2026 23:07 PST - Details
View on AmazonPros
+Micro-ATX form factor fits smaller cases
+AMD B550 chipset with AM4 socket for Ryzen processors
+Four DDR4 memory slots for larger memory configurations
Cons−Micro-ATX layout offers fewer expansion slots than ATX
Compared with the 17 motherboards on this page+4 memory slots: only 2 of 65 here have more memory slots
How pros and cons are picked (About: Disclaimer)About this product
AM4, mATX, DDR4, AMD B550
+Micro ATX form factor fits compact builds
+Uses AM4 socket for Ryzen 5600, 3600, 4700 and 3700 CPUs
+AMD B550 chipset with DDR4 memory support
$503.16
as of 11/04/2026 15:07 PST - DetailsProduct details
Gaming Motherboard B550 Motherboard Fit for ASRock B550M/ac Socket AM4 Support Ryzen 5600 3600 4700 3700 CPU DDR4 64GB
$503.16as of 11/04/2026 15:07 PST - Details
View on AmazonPros
+Micro ATX form factor fits compact builds
+Uses AM4 socket for Ryzen 5600, 3600, 4700 and 3700 CPUs
+AMD B550 chipset with DDR4 memory support
+Supports up to 64GB of DDR4 memory
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.7
AM4, mATX, DDR4, 4 Memory slots
+Compact mATX form factor
+Four RAM slots for DDR4 memory
+AM4 socket supports AMD Ryzen 5000 and older series processors
−Only 1G LAN for wired networking
−Uses DDR4 memory rather than newer DDR5
$89.99
as of 11/04/2026 00:18 PST - DetailsProduct details
MSI PRO B550M-P Motherboard, mATX - Supports AMD Ryzen 5000/5000 G-Series, 4000 G-Series, 3000 G-Series Desktop
$89.99as of 11/04/2026 00:18 PST - Details
View on AmazonSpec score7.7
Pros
+Compact mATX form factor
+Four RAM slots for DDR4 memory
+AM4 socket supports AMD Ryzen 5000 and older series processors
Cons−Only 1G LAN for wired networking
−Uses DDR4 memory rather than newer DDR5
−Single M.2 slot limits fast storage expansion
Compared with the 17 motherboards on this page+4 memory slots: only 2 of 65 here have more memory slots
+1 pcie x16 slots: only 4 of 33 here have more pcie x16 slots
−1 m.2 slots: 41 of the 59 here have more m.2 slots
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)About this product
AM4, mATX, DDR4, AMD B550
+AMD B550 chipset for AM4 Ryzen processors
+Micro-ATX form factor fits many standard cases
+Supports up to 128GB of DDR4 memory
$288.32
as of 11/04/2026 00:16 PST - DetailsProduct details
motherboard Fit For ASROCK B550M PRO SE | AM4 PRO565 128GB DDR4 M.2 Micro ATX Support Ryzen 5800 3400 3700 5600 5500 Cpu
$288.32as of 11/04/2026 00:16 PST - Details
View on AmazonPros
+AMD B550 chipset for AM4 Ryzen processors
+Micro-ATX form factor fits many standard cases
+Supports up to 128GB of DDR4 memory
+Supports PCIe 4.0 for newer components
How pros and cons are picked (About: Disclaimer)About this product
AM4, mATX, 4 Memory slots, AMD B550
+AM4 socket supports a wide range of Ryzen processors
+Micro ATX form factor fits compact builds
+Four DDR4 slots allow larger memory configurations
$264.86
as of 11/04/2026 00:40 PST - DetailsProduct details
Placa Madre Fit for ASRock B550M/AC Motherboard Supports Ryzen 5 3600 5600G 5700X 5700X3D 5800X3D CPU 4xDDR4 4733MHz
$264.86as of 11/04/2026 00:40 PST - Details
View on AmazonPros
+AM4 socket supports a wide range of Ryzen processors
+Micro ATX form factor fits compact builds
+Four DDR4 slots allow larger memory configurations
+B550 chipset supports PCIe 4.0
Compared with the 17 motherboards on this page+4 memory slots: only 2 of 65 here have more memory slots
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.0
AM4, mATX, DDR4, 4 Memory slots
+Two M.2 slots for fast NVMe storage
+Supports up to 128GB of memory
+Four DDR4 slots for expanding memory
No price recorded yet.
Product details
MSI B550M PRO-VDH WiFi AMD AM4 Micro-ATX Motherboard, PCIe 4.0, Dual M.2, DDR4-4400 (OC), Wi-Fi & Bluetooth, USB 3.2No price recorded yet.View on Amazon
Spec score8.0
Pros
+Two M.2 slots for fast NVMe storage
+Supports up to 128GB of memory
+Four DDR4 slots for expanding memory
+Built-in Wi-Fi and Bluetooth
+PCIe 4.0 support for newer graphics cards and storage
Compared with the 17 motherboards on this page+4 memory slots: only 2 of 65 here have more memory slots
+128GB maximum memory: only 1 of 22 here have a higher maximum memory
+2 m.2 slots: only 3 of 59 here have more m.2 slots
−1G: 39 of the 73 here have a higher wired lan
How pros and cons are picked (About: Disclaimer)About this product
Compare specs
| motherboard | Socket | Form factor | Memory type | Chipset | Spec score | Price |
|---|---|---|---|---|---|---|
| AM4 | mATX | DDR4 | AMD B550 | 7.9 | $74.99 as of 11/03/2026 23:11 PST - Details | |
| AM4 | mATX | DDR4 | AMD B550 | 8.1 | $99.00 as of 11/04/2026 12:09 PST - Details | |
| AM4 | mATX | DDR4 | AMD B550 | n/a | $109.99 as of 11/04/2026 00:18 PST - Details | |
| AM4 | mATX | DDR4 | AMD B550 | 7.6 | $69.99 as of 11/04/2026 12:09 PST - Details | |
| AM4 | mATX | DDR4 | AMD B550 | n/a | $89.99 as of 11/04/2026 00:18 PST - Details | |
| AM4 | mATX | DDR4 | AMD B550 | 8.2 | $93.98 as of 11/04/2026 12:09 PST - Details | |
| AM4 | mATX | DDR4 | AMD B550 | 8.1 | $126.00 as of 11/03/2026 23:11 PST - Details | |
| AM4 | mATX | DDR4 | AMD B550 | 8.3 | $138.99 as of 11/03/2026 23:11 PST - Details | |
| AM4 | mATX | DDR4 | AMD B550 | 8.1 | $116.98 as of 11/04/2026 00:18 PST - Details | |
| AM4 | mATX | DDR4 | AMD B550 | n/a | $118.95 as of 11/04/2026 00:18 PST - Details |
















