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Product comparison · 2 motherboards

ASUS PRIME A520M-K ARGB vs ASUS PRIME B550M-K WIFI

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  • 59specifications compared
  • 9differ
  • 50identical
  • 19known for one product only

Key differences

The ASUS PRIME B550M-K WIFI has 1 more storage drives supported than the ASUS PRIME A520M-K ARGB (6 vs 5). The ASUS PRIME A520M-K ARGB has 1 more USB 3.2 Gen 1 (3.1 Gen 1) connectors than the ASUS PRIME B550M-K WIFI (2 vs 1). The ASUS PRIME B550M-K WIFI has 1 more m.2 (M) slots than the ASUS PRIME A520M-K ARGB (2 vs 1). Only the ASUS PRIME B550M-K WIFI has Wi-Fi. Top Wi-Fi standard: Not available on the ASUS PRIME A520M-K ARGB, Wi-Fi 6 (802.11ax) on the ASUS PRIME B550M-K WIFI.

  • Number of storage drives supported
    • 5
    • 6
  • USB 3.2 Gen 1 (3.1 Gen 1) connectors
    • 2
    • 1
  • Wi-Fi
    • No
    • Yes
  • Top Wi-Fi standard
    • Not available
    • Wi-Fi 6 (802.11ax)
  • Motherboard chipset
    • AMD A520
    • AMD B550
  • Product colour
    • Black, White
    • Multicolour
  • Number of M.2 (M) slots
    • 1
    • 2
  • Width
    • 226 mm
    • 244 mm

Side by side

Differences highlightedShow differences only
78 specifications
A

ASUS

PRIME A520M-K ARGBView product
B

ASUS

PRIME B550M-K WIFIView product
Processoridentical
Processor manufacturerAMDAMD
Processor socketSocket AM4Socket AM4
Compatible processor seriesAMD Ryzen 5000 Series, AMD Ryzen 4000 Series, AMD Ryzen 3000 SeriesAMD Ryzen 5000 Series, AMD Ryzen 4000 Series, AMD Ryzen 3000 Series
Supported processor socketsKnown for oneSocket AM4
Memoryidentical
Supported memory typesDDR4-SDRAMDDR4-SDRAM
Number of memory slots22
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
ECC сompatibilityECCECC
Maximum internal memory64 GB64 GB
Unbuffered memoryYesYes
Supported memory clock speedsKnown for one5100,4866,4600,4466,4400,4333,4266,4200,4133,4000,3866,3733,3600,3466,3400,3333,3200,3000,2933,2800,2666,2400,2133 MHz
Storage controllers1 differ
Supported storage drive typesHDD & SSDHDD & SSD
Supported storage drive interfacesM.2, SATA IIIM.2, SATA III
Number of HDDs supported44
Number of storage drives supportedDiffers56
RAID supportYesYes
RAID levels0, 1, 100, 1, 10
Graphicsidentical
Parallel processing technology supportKnown for oneNot supported
Internal I/O1 differ
USB 2.0 connectors22
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers21
USB 3.2 Gen 2 (3.1 Gen 2) connectors00
Number of SATA III connectors44
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
Number of EPS power connectors (8-pin)Known for one1
Rear panel I/O portsidentical
USB 2.0 ports quantity22
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 quantity00
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity00
Ethernet LAN (RJ-45) ports11
PS/2 ports quantity11
VGA (D-Sub) ports quantity00
HDMI ports quantity11
DVI-D ports quantity00
DisplayPorts quantity11
Microphone inYesYes
Headphone outputsKnown for one1
Network2 differ
Ethernet LANYesYes
Ethernet interface typeGigabit EthernetGigabit Ethernet
Wi-FiDiffersNoYes
Top Wi-Fi standardDiffersNot availableWi-Fi 6 (802.11ax)
BluetoothKnown for oneYes
Features2 differ
Component forPCPC
Motherboard form factormicro ATXmicro ATX
Motherboard chipset familyAMDAMD
Motherboard chipsetDiffersAMD A520AMD B550
Audio output channels7.1 channels7.1 channels
Product colourDiffersBlack, WhiteMulticolour
Windows operating systems supportedWindows 10 x64, Windows 11Windows 10 x64, Windows 11
Expansion slots1 differ
PCI Express x1 (Gen 3.x) slots11
PCI Express x16 (Gen 3.x) slotsKnown for one1
Number of M.2 (M) slotsDiffers12
1st M.2 largest key size22802280
1st M.2 highest PCI Express generationKnown for one3.0
2nd M.2 largest key sizeKnown for one22110
BIOSidentical
BIOS typeUEFI AMIUEFI AMI
BIOS memory size128 Mbit128 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 mm244 mm
DepthDiffers226 mm221 mm
Packaging contentidentical
Cables includedKnown for oneSATA
Screws includedKnown for oneYes

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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