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Product comparison · 2 motherboards

ASUS PRIME A520M-A vs ASUS Prime B550M-A/CSM

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  • 32specifications compared
  • 6differ
  • 26identical
  • 18known for one product only

Key differences

  • Supported storage drive interfaces
    • M.2, PCI Express, SATA
    • M.2, SATA
  • USB 2.0 ports quantity
    • 2
    • 0
  • USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
    • 0
    • 2
  • Motherboard chipset
    • AMD A520
    • AMD B550
  • Windows operating systems supported
    • Windows 10 Home x64
    • Windows 10

Side by side

Differences highlightedShow differences only
50 specifications
A

ASUS

PRIME A520M-AView product
B

ASUS

Prime B550M-A/CSMView product
Processoridentical
Processor manufacturerAMDAMD
Processor socketKnown for oneSocket AM4
Compatible processor seriesAMD Ryzen 3000 SeriesAMD Ryzen 3000 Series
Memory1 differ
Supported memory typesDDR4-SDRAMDDR4-SDRAM
Number of memory slots44
Memory slots typeDIMMDIMM
Supported memory clock speedsDiffers2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4266,4400,4466,4600,4800 MHz2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4600 MHz
Maximum internal memory128 GB128 GB
Storage controllers1 differ
Supported storage drive interfacesDiffersM.2, PCI Express, SATAM.2, SATA
Graphicsidentical
On-board graphics cardKnown for oneNo
Internal I/Oidentical
USB 2.0 connectors44
USB 3.2 Gen 1 (3.1 Gen 1) connectors22
USB 3.2 Gen 2 (3.1 Gen 2) connectorsKnown for one0
Number of SATA III connectorsKnown for one4
Number of SATA II connectorsKnown for one0
Number of SATA connectorsKnown for one0
Number of Parallel ATA connectorsKnown for one0
Rear panel I/O ports2 differ
USB 2.0 ports quantityDiffers20
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity44
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity00
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityDiffers02
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity00
Ethernet LAN (RJ-45) ports11
eSATA ports quantityKnown for one0
PS/2 ports quantity11
Firewire (IEEE 1394) ports00
VGA (D-Sub) ports quantity11
HDMI ports quantity11
DVI-D ports quantity11
Headphone outputsKnown for one1
Microphone inKnown for oneYes
Networkidentical
Ethernet LANYesYes
Ethernet interface typeKnown for oneGigabit Ethernet
LAN controllerRealtek RTL8111HRealtek RTL8111H
Wi-FiNoNo
Features2 differ
Component forKnown for onePC
Motherboard form factormicro ATXmicro ATX
Motherboard chipset familyAMDAMD
Motherboard chipsetDiffersAMD A520AMD B550
Audio chipKnown for oneRealtek ALC887
Audio output channelsKnown for one7.1 channels
Product colourKnown for oneBlack, Silver
Windows operating systems supportedDiffersWindows 10 Home x64Windows 10
Expansion slotsidentical
PCI Express x16 (Gen 4.x) slotsKnown for one1
BIOSidentical
BIOS typeUEFI AMIUEFI AMI
BIOS memory size256 Mbit256 Mbit
Weight & dimensionsidentical
Width244 mm244 mm
Depth244 mm244 mm
Other featuresidentical
mSATA ports quantityKnown for one0
Logistics dataidentical
Harmonized System (HS) codeKnown for one84733020

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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