Product comparison · 2 motherboards

ASUS PRIME B550-PLUS AC-HES vs ASUS PRIME B550M-K WIFI

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  • 60specifications compared
  • 19differ
  • 41identical
  • 11known for one product only

Key differences

The ASUS PRIME B550-PLUS AC-HES has 2 more memory slots than the ASUS PRIME B550M-K WIFI (4 vs 2). The ASUS PRIME B550-PLUS AC-HES has 64 GB more maximum internal memory than the ASUS PRIME B550M-K WIFI (128 GB vs 64 GB). The ASUS PRIME B550-PLUS AC-HES has 2 more HDDs supported than the ASUS PRIME B550M-K WIFI (6 vs 4). Top Wi-Fi standard: Wi-Fi 5 (802.11ac) on the ASUS PRIME B550-PLUS AC-HES, Wi-Fi 6 (802.11ax) on the ASUS PRIME B550M-K WIFI. Motherboard form factor: ATX on the ASUS PRIME B550-PLUS AC-HES, micro ATX on the ASUS PRIME B550M-K WIFI.

  • Number of memory slots
    • PRIME B550-PLUS AC-HES:4
    • PRIME B550M-K WIFI:2
  • Maximum internal memory
    • PRIME B550-PLUS AC-HES:128 GB
    • PRIME B550M-K WIFI:64 GB
  • Number of HDDs supported
    • PRIME B550-PLUS AC-HES:6
    • PRIME B550M-K WIFI:4
  • Number of storage drives supported
    • PRIME B550-PLUS AC-HES:8
    • PRIME B550M-K WIFI:6
  • USB 3.2 Gen 1 (3.1 Gen 1) connectors
    • PRIME B550-PLUS AC-HES:2
    • PRIME B550M-K WIFI:1
  • Number of SATA III connectors
    • PRIME B550-PLUS AC-HES:6
    • PRIME B550M-K WIFI:4
  • USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
    • PRIME B550-PLUS AC-HES:2
    • PRIME B550M-K WIFI:4
  • USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
    • PRIME B550-PLUS AC-HES:1
    • PRIME B550M-K WIFI:0

Side by side

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Comparison of PRIME B550-PLUS AC-HES, PRIME B550M-K WIFI
71 specifications
Processor1 differ
Processor manufacturerAMDAMD
Processor socketSocket AM4Socket AM4
Compatible processor seriesDiffersAMD Ryzen 5000 Series, AMD Ryzen 3000 SeriesAMD Ryzen 5000 Series, AMD Ryzen 4000 Series, AMD Ryzen 3000 Series
Memory3 differ
Supported memory typesDDR4-SDRAMDDR4-SDRAM
Number of memory slotsDiffers42
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
ECC сompatibilityECCECC
Supported memory clock speedsDiffers4866,4800,4600,4466,4400,4333,4266,4200,4133,4000,3866,3733,3600,3466,3400,3333,3200,3000,2933,2800,2666,2400,2133 MHz5100,4866,4600,4466,4400,4333,4266,4200,4133,4000,3866,3733,3600,3466,3400,3333,3200,3000,2933,2800,2666,2400,2133 MHz
Maximum internal memoryDiffers128 GB64 GB
Unbuffered memoryYesYes
Storage controllers2 differ
Supported storage drive typesHDD & SSDHDD & SSD
Supported storage drive interfacesM.2, SATA IIIM.2, SATA III
Number of HDDs supportedDiffers64
Number of storage drives supportedDiffers86
RAID supportYesYes
RAID levels0, 1, 100, 1, 10
Graphicsidentical
Parallel processing technology supportKnown for oneNot supportedUnknown — not stated by the source
Internal I/O2 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 connectorsDiffers64
Front panel audio connectorYesYes
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
Number of EPS power connectors (8-pin)Known for oneUnknown — not stated by the source1
Rear panel I/O ports3 differ
USB 2.0 ports quantity22
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers24
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 quantityDiffers10
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers10
Ethernet LAN (RJ-45) ports11
VGA (D-Sub) ports quantity00
HDMI ports quantity11
DVI-D ports quantity00
DisplayPorts quantity11
Headphone outputs11
Microphone inYesYes
S/PDIF out portKnown for oneYesUnknown — not stated by the source
PS/2 ports quantityKnown for oneUnknown — not stated by the source1
Network1 differ
Ethernet LANYesYes
Ethernet interface typeGigabit EthernetGigabit Ethernet
Wi-FiYesYes
Top Wi-Fi standardDiffersWi-Fi 5 (802.11ac)Wi-Fi 6 (802.11ax)
Wi-Fi standardsKnown for oneWi-Fi 5 (802.11ac)Unknown — not stated by the source
BluetoothKnown for oneUnknown — not stated by the sourceYes
Features2 differ
Component forPCPC
Motherboard form factorDiffersATXmicro ATX
Motherboard chipset familyAMDAMD
Motherboard chipsetAMD B550AMD B550
Audio chipKnown for oneRealtek ALC887 / Realtek ALC897Unknown — not stated by the source
Audio output channels7.1 channels7.1 channels
Product colourMulticolourMulticolour
Windows operating systems supportedDiffersWindows 10 x64Windows 10 x64, Windows 11
Expansion slots2 differ
PCI Express x16 (Gen 3.x) slotsKnown for one4Unknown — not stated by the source
Number of M.2 (M) slots22
1st M.2 largest key sizeDiffers22422280
2nd M.2 largest key sizeDiffers226022110
3rd M.2 largest key sizeKnown for one2280Unknown — not stated by the source
4th M.2 largest key sizeKnown for one22110Unknown — not stated by the source
PCI Express x1 (Gen 3.x) slotsKnown for oneUnknown — not stated by the source1
BIOS1 differ
BIOS typeUEFI AMIUEFI AMI
BIOS memory sizeDiffers256 Mbit128 Mbit
Weight & dimensions2 differ
WidthDiffers305 mm244 mm
DepthDiffers244 mm221 mm

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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