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Product comparison · 2 motherboards

ASUS PRIME A520M-K ARGB vs ASUS PRIME B550-PLUS AC-HES

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  • 59specifications compared
  • 21differ
  • 38identical
  • 22known for one product only

Key differences

The ASUS PRIME B550-PLUS AC-HES has 2 more memory slots than the ASUS PRIME A520M-K ARGB (4 vs 2). The ASUS PRIME B550-PLUS AC-HES has 64 GB more maximum internal memory than the ASUS PRIME A520M-K ARGB (128 GB vs 64 GB). The ASUS PRIME B550-PLUS AC-HES has 2 more HDDs supported than the ASUS PRIME A520M-K ARGB (6 vs 4). Only the ASUS PRIME B550-PLUS AC-HES has Wi-Fi. Top Wi-Fi standard: Not available on the ASUS PRIME A520M-K ARGB, Wi-Fi 5 (802.11ac) on the ASUS PRIME B550-PLUS AC-HES.

  • Number of memory slots
    • 2
    • 4
  • Maximum internal memory
    • 64 GB
    • 128 GB
  • Number of HDDs supported
    • 4
    • 6
  • Number of storage drives supported
    • 5
    • 8
  • Number of SATA III connectors
    • 4
    • 6
  • USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
    • 4
    • 2
  • USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
    • 0
    • 1
  • USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
    • 0
    • 1

Side by side

Differences highlightedShow differences only
81 specifications
A

ASUS

PRIME A520M-K ARGBView product
B

ASUS

PRIME B550-PLUS AC-HESView product
Processor1 differ
Processor manufacturerAMDAMD
Processor socketSocket AM4Socket AM4
Compatible processor seriesDiffersAMD Ryzen 5000 Series, AMD Ryzen 4000 Series, AMD Ryzen 3000 SeriesAMD Ryzen 5000 Series, AMD Ryzen 3000 Series
Supported processor socketsKnown for oneSocket AM4
Memory2 differ
Supported memory typesDDR4-SDRAMDDR4-SDRAM
Number of memory slotsDiffers24
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
ECC сompatibilityECCECC
Maximum internal memoryDiffers64 GB128 GB
Unbuffered memoryYesYes
Supported memory clock speedsKnown for one4866,4800,4600,4466,4400,4333,4266,4200,4133,4000,3866,3733,3600,3466,3400,3333,3200,3000,2933,2800,2666,2400,2133 MHz
Storage controllers2 differ
Supported storage drive typesHDD & SSDHDD & SSD
Supported storage drive interfacesM.2, SATA IIIM.2, SATA III
Number of HDDs supportedDiffers46
Number of storage drives supportedDiffers58
RAID supportYesYes
RAID levels0, 1, 100, 1, 10
Graphicsidentical
Parallel processing technology supportNot supportedNot supported
Internal I/O1 differ
USB 2.0 connectors22
USB 3.2 Gen 1 (3.1 Gen 1) connectors22
USB 3.2 Gen 2 (3.1 Gen 2) connectors00
Number of SATA III connectorsDiffers46
S/PDIF out connectorKnown for oneYes
Front panel audio connectorYesYes
Front panel connectorKnown for oneYes
ATX Power connector (24-pin)YesYes
CPU fan connectorYesYes
Number of CPU fan connectors11
Number of chassis fan connectors22
EPS power connector (8-pin)YesYes
12V power connectorYesYes
Number of COM connectors11
TPM connectorYesYes
RGB LED pin headerKnown for oneYes
Number of RGB LED pin headersKnown for one3
Rear panel I/O ports3 differ
USB 2.0 ports quantity22
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers42
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 quantityDiffers01
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers01
Ethernet LAN (RJ-45) ports11
PS/2 ports quantityKnown for one1
VGA (D-Sub) ports quantity00
HDMI ports quantity11
DVI-D ports quantity00
DisplayPorts quantity11
Microphone inYesYes
Headphone outputsKnown for one1
S/PDIF out portKnown for oneYes
Network2 differ
Ethernet LANYesYes
Ethernet interface typeGigabit EthernetGigabit Ethernet
Wi-FiDiffersNoYes
Top Wi-Fi standardDiffersNot availableWi-Fi 5 (802.11ac)
Wi-Fi standardsKnown for oneWi-Fi 5 (802.11ac)
Features4 differ
Component forPCPC
Motherboard form factorDiffersmicro ATXATX
Motherboard chipset familyAMDAMD
Motherboard chipsetDiffersAMD A520AMD B550
Audio output channels7.1 channels7.1 channels
Product colourDiffersBlack, WhiteMulticolour
Windows operating systems supportedDiffersWindows 10 x64, Windows 11Windows 10 x64
Audio chipKnown for oneRealtek ALC887 / Realtek ALC897
Expansion slots3 differ
PCI Express x1 (Gen 3.x) slotsKnown for one1
PCI Express x16 (Gen 3.x) slotsDiffers14
Number of M.2 (M) slotsDiffers12
1st M.2 largest key sizeDiffers22802242
1st M.2 highest PCI Express generationKnown for one3.0
2nd M.2 largest key sizeKnown for one2260
3rd M.2 largest key sizeKnown for one2280
4th M.2 largest key sizeKnown for one22110
BIOS1 differ
BIOS typeUEFI AMIUEFI AMI
BIOS memory sizeDiffers128 Mbit256 Mbit
Packaging dataidentical
Package widthKnown for one260 mm
Package depthKnown for one270 mm
Package heightKnown for one51.5 mm
Package weightKnown for one804 g
Weight & dimensions2 differ
WidthDiffers226 mm305 mm
DepthDiffers226 mm244 mm
Packaging contentidentical
Cables includedKnown for oneSATA
Screws includedKnown for oneYes

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