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

Side by side

Differences highlightedShow differences only
71 specifications
A

ASUS

PRIME B550-PLUS AC-HESView product
B

ASUS

PRIME B550M-K WIFIView product
Processor1 differ
Compatible processor seriesDiffersAMD Ryzen 5000 Series, AMD Ryzen 3000 SeriesAMD Ryzen 5000 Series, AMD Ryzen 4000 Series, AMD Ryzen 3000 Series
Memory3 differ
Number of memory slotsDiffers42
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
Storage controllers2 differ
Number of HDDs supportedDiffers64
Number of storage drives supportedDiffers86
Graphicsidentical
Parallel processing technology supportKnown for oneNot supported
Internal I/O2 differ
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers21
Number of SATA III connectorsDiffers64
Number of EPS power connectors (8-pin)Known for one1
Rear panel I/O ports3 differ
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers24
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
S/PDIF out portKnown for oneYes
PS/2 ports quantityKnown for one1
Network1 differ
Top Wi-Fi standardDiffersWi-Fi 5 (802.11ac)Wi-Fi 6 (802.11ax)
Wi-Fi standardsKnown for oneWi-Fi 5 (802.11ac)
BluetoothKnown for oneYes
Features2 differ
Motherboard form factorDiffersATXmicro ATX
Audio chipKnown for oneRealtek ALC887 / Realtek ALC897
Windows operating systems supportedDiffersWindows 10 x64Windows 10 x64, Windows 11
Expansion slots2 differ
PCI Express x16 (Gen 3.x) slotsKnown for one4
1st M.2 largest key sizeDiffers22422280
2nd M.2 largest key sizeDiffers226022110
3rd M.2 largest key sizeKnown for one2280
4th M.2 largest key sizeKnown for one22110
PCI Express x1 (Gen 3.x) slotsKnown for one1
BIOS1 differ
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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