Product comparison · 2 motherboards

ASUS PRIME A520M-K ARGB vs MSI PRO B550M-P

54specifications compared
20differ
34identical
36known for one product only

Key differences

The MSI PRO B550M-P has 2 more memory slots than the ASUS PRIME A520M-K ARGB (4 vs 2). The MSI PRO B550M-P has 64 GB more maximum internal memory than the ASUS PRIME A520M-K ARGB (128 GB vs 64 GB). The ASUS PRIME A520M-K ARGB has 3 more storage drives supported than the MSI PRO B550M-P (5 vs 2). ECC сompatibility: ECC on the ASUS PRIME A520M-K ARGB, Non-ECC on the MSI PRO B550M-P. Motherboard form factor: micro ATX on the ASUS PRIME A520M-K ARGB, ATX on the MSI PRO B550M-P.

Number of memory slots
- PRIME A520M-K ARGB:2
- PRO B550M-P:4
ECC сompatibility
- PRIME A520M-K ARGB:ECC
- PRO B550M-P:Non-ECC
Maximum internal memory
- PRIME A520M-K ARGB:64 GB
- PRO B550M-P:128 GB
Number of storage drives supported
- PRIME A520M-K ARGB:5
- PRO B550M-P:2
USB 2.0 connectors
- PRIME A520M-K ARGB:2
- PRO B550M-P:4
USB 3.2 Gen 1 (3.1 Gen 1) connectors
- PRIME A520M-K ARGB:2
- PRO B550M-P:6
USB 3.2 Gen 2 (3.1 Gen 2) connectors
- PRIME A520M-K ARGB:0
- PRO B550M-P:1
USB 2.0 ports quantity
- PRIME A520M-K ARGB:2
- PRO B550M-P:6

Side by side

Differences highlightedShow differences only

Comparison of PRIME A520M-K ARGB, PRO B550M-P
90 specifications	A ASUS PRIME A520M-K ARGB View product	B MSI PRO B550M-P View product
Memory3 differ
Number of memory slotsDiffers	2	4
ECC сompatibilityDiffers	ECC	Non-ECC
Maximum internal memoryDiffers	64 GB	128 GB
Supported memory clock speedsKnown for one	Unknown — not stated by the source	2667,2800,2933,3000,3066,3200,3466,3600,3733,3866,4000,4133,4266,4400 MHz
Supported memory clock speed (max)Known for one	Unknown — not stated by the source	4400 MHz
Storage controllers2 differ
Supported storage drive interfacesDiffers	M.2, SATA III	M.2, PCI Express 4.0, PCI Express 3.0, SATA
Number of storage drives supportedDiffers	5	2
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	Yes
Internal I/O3 differ
USB 2.0 connectorsDiffers	2	4
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers	2	6
USB 3.2 Gen 2 (3.1 Gen 2) connectorsDiffers	0	1
S/PDIF out connectorKnown for one	Yes	Unknown — not stated by the source
ATX Power connector (24-pin)Known for one	Yes	Unknown — not stated by the source
Number of CPU fan connectorsKnown for one	1	Unknown — not stated by the source
Number of chassis fan connectorsKnown for one	2	Unknown — not stated by the source
EPS power connector (8-pin)Known for one	Yes	Unknown — not stated by the source
12V power connectorKnown for one	Yes	Unknown — not stated by the source
Number of COM connectorsKnown for one	1	Unknown — not stated by the source
Number of RGB LED pin headersKnown for one	3	Unknown — not stated by the source
Number of SATA connectorsKnown for one	Unknown — not stated by the source	4
Total number of SATA connectorsKnown for one	Unknown — not stated by the source	4
Chassis intrusion connectorKnown for one	Unknown — not stated by the source	Yes
Rear panel I/O ports4 differ
USB 2.0 ports quantityDiffers	2	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	4	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityDiffers	0	1
PS/2 ports quantityKnown for one	1	Unknown — not stated by the source
VGA (D-Sub) ports quantityDiffers	0	1
Microphone inKnown for one	Yes	Unknown — not stated by the source
HDMI versionKnown for one	Unknown — not stated by the source	2.1
DisplayPort versionKnown for one	Unknown — not stated by the source	1.4
Networkidentical
Top Wi-Fi standardKnown for one	Not available	Unknown — not stated by the source
LAN controllerKnown for one	Unknown — not stated by the source	Realtek 8111H
Features2 differ
Motherboard form factorDiffers	micro ATX	ATX
Motherboard chipsetDiffers	AMD A520	AMD B550
Product colourKnown for one	Black, White	Unknown — not stated by the source
Windows operating systems supportedKnown for one	Windows 10 x64, Windows 11	Unknown — not stated by the source
Audio chipKnown for one	Unknown — not stated by the source	Realtek ALC897
Expansion slots3 differ
PCI Express x1 (Gen 3.x) slotsDiffers	1	2
Number of M.2 (M) slotsDiffers	1	2
1st M.2 highest PCI Express generationDiffers	3.0	4.0
PCI Express x1 (Gen 4.x) slotsKnown for one	Unknown — not stated by the source	0
PCI Express x16 slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 (Gen 4.x) slotsKnown for one	Unknown — not stated by the source	1
2nd M.2 largest key sizeKnown for one	Unknown — not stated by the source	2280
2nd M.2 highest PCI Express generationKnown for one	Unknown — not stated by the source	3.0
BIOS1 differ
BIOS memory sizeDiffers	128 Mbit	256 Mbit
ACPI versionKnown for one	Unknown — not stated by the source	6.0
System Management BIOS (SMBIOS) versionKnown for one	Unknown — not stated by the source	2.8
Packaging dataidentical
Package widthKnown for one	260 mm	Unknown — not stated by the source
Package depthKnown for one	270 mm	Unknown — not stated by the source
Package heightKnown for one	51.5 mm	Unknown — not stated by the source
Package weightKnown for one	804 g	Unknown — not stated by the source
Weight & dimensions2 differ
WidthDiffers	226 mm	243.8 mm
DepthDiffers	226 mm	243.8 mm
Packaging contentidentical
Cables includedKnown for one	SATA	Unknown — not stated by the source
Screws includedKnown for one	Yes	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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