StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › ASUS
ASUS
Placa Base Asus Am4 Prime B550m-K M-Atx/4xddr4/4xsata6/2xusb 3.2+4xusb 2.0 90mb14v0-M0eay0
ASUS

Placa Base Asus Am4 Prime B550m-K M-Atx/4xddr4/4xsata6/2xusb 3.2+4xusb 2.0 90mb14v0-M0eay0

Best price now

$101.00at InpexOpcionChecked Nov 10

Prices are checked against each store and labelled with when.

Visit InpexOpcion
ASUS discount code →

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $101.00 at InpexOpcion on Nov 10.

Our take on the Placa Base Asus Am4 Prime B550m-K M-Atx/4xddr4/4xsata6/2xusb 3.2+4xusb 2.0 90mb14v0-M0eay0

The ASUS Prime B550M-K is a micro ATX motherboard for AMD's AM4 socket, built on the B550 chipset. It has four DDR4 DIMM slots rated up to 128 GB and memory speeds up to 4600 MHz, plus an M.2 slot and four SATA 6 Gb/s ports for storage. It suits budget and mid-range Ryzen builds that want a compact board with room to grow. Against pricier B550 boards it gives up PCIe 4.0 lane count, Wi-Fi and premium power delivery, but covers the basics for a straightforward desktop.

Best forBudget AM4 Ryzen buildsCompact micro ATX casesGeneral home and office PCsFirst-time builders
Pros
  • Four DIMM slots with high memory speed support
  • M.2 plus four SATA ports for storage
  • Micro ATX size fits smaller cases
  • Simple UEFI BIOS with 256 MB ROM
  • B550 chipset with PCIe 4.0 support on the primary slot
Cons
  • No built-in Wi-Fi
  • Modest power delivery for high-end CPUs
  • Fewer USB ports than larger boards
  • No USB-C header on this model

Placa Base Asus Am4 Prime B550m-K M-Atx/4xddr4/4xsata6/2xusb 3.2+4xusb 2.0 90mb14v0-M0eay0 prices at every store

  • InpexOpcionNew

    In stockShips from Spain · duties may applyReturn policy

    $101.00Checked Nov 10
    Visit InpexOpcion

What reviewers say

Owners of ASUS Prime boards generally describe them as reliable, easy to set up and good value for the money. Complaints tend to focus on the basic power delivery and limited connectivity rather than failures.

What people mention
  • SetupPraisedBuilders say the board goes together easily and the BIOS is simple to navigate.
  • StabilityPraisedOwners report it runs reliably in everyday use.
  • Power deliveryCriticisedSome say the VRM is basic and not ideal for high-end Ryzen chips.
  • ConnectivityMixedThe port selection covers the basics but is sparser than on larger boards.
  • ValuePraisedBuyers see it as a sensible budget B550 option.

About the Placa Base Asus Am4 Prime B550m-K M-Atx/4xddr4/4xsata6/2xusb 3.2+4xusb 2.0 90mb14v0-M0eay0

The ASUS PRIME B550M-K is a micro ATX motherboard with an AMD B550 chipset and an AM4 socket. It supports AMD Ryzen 3000 Series processors.

It has four DIMM slots for DDR4 memory, up to 128 GB. Expansion includes one PCI Express x16 (Gen 4.x) slot and two PCI Express x1 (Gen 3.x) slots.

Video output is through HDMI and DVI-D. Networking is wired Ethernet with a Realtek RTL8111H controller. The board has no Wi-Fi.

Model
ASUS PRIME B550M-K (90MB14V0-M0EAY0)
Chipset
AMD B550
Socket
AM4
Processor
AMD Ryzen 3000 Series
Form factor
micro ATX
Memory
4 x DIMM slots, DDR4-SDRAM, up to 128 GB
Memory speeds
2133, 2400, 2666, 2800, 3000, 3200, 3333, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400, 4600 MHz
Expansion slots
1 x PCI Express x16 (Gen 4.x), 2 x PCI Express x1 (Gen 3.x)
Rear ports
4 x USB 3.2 Gen 1 Type-A, 2 x USB 3.2 Gen 2 Type-A, 1 x RJ-45 Ethernet, 1 x PS/2 mouse, 1 x HDMI, 1 x DVI-D
Internal headers
1 x USB 3.2 Gen 1, 2 x USB 2.0, 24-pin ATX power connector
Networking
Ethernet, Realtek RTL8111H LAN controller; no Wi-Fi
BIOS
UEFI AMI
OS support
Windows 10

Questions and answers

Which CPUs does the Prime B550M-K support?
It uses the AM4 socket and is listed for AMD Ryzen 3000 series processors. Check ASUS support for BIOS updates before pairing it with newer Ryzen generations.
How much memory can it take?
Four DIMM slots support up to 128 GB of DDR4, with listed speeds from 2133 MHz up to 4600 MHz.
Does it have Wi-Fi?
No. It relies on wired Ethernet, so you need a separate Wi-Fi card or USB adapter for wireless.
What storage can I connect?
There is one M.2 slot and four SATA 6 Gb/s ports, enough for an NVMe drive plus several hard drives or SSDs.
Is it a good fit for a small case?
Yes. The micro ATX form factor fits compact cases while keeping four memory slots and a full set of expansion options.
Does it support PCIe 4.0?
The B550 chipset supports PCIe 4.0 with compatible Ryzen processors, which helps with fast NVMe drives and recent graphics cards.
Where is the Placa Base Asus Am4 Prime B550m-K M-Atx/4xddr4/4xsata6/2xusb 3.2+4xusb 2.0 90mb14v0-M0eay0 cheapest?
At InpexOpcion, for $101.00, as of our latest check.

More from ASUS

  • A
    ASUS Prime B550M-A WiFi II AMD AM4 Micro ATX Motherboard
    ASUS Prime B550M-A WiFi II AMD AM4 Micro ATX Motherboard
  • A
    ASUS ROG STRIX B550-F GAMING WIFI II Desktop Motherboard
    ASUS ROG STRIX B550-F GAMING WIFI II Desktop Motherboard
  • A
    ASUS mATX Skt-AM4 4xDDR4 ALC887/ /RTL8111H [V/D/H]
    ASUS mATX Skt-AM4 4xDDR4 ALC887/ /RTL8111H [V/D/H]
  • A
    Asus Prime PRIME B550-PLUS AC-HES Desktop Motherboard
    Asus Prime PRIME B550-PLUS AC-HES Desktop Motherboard
  • M
    Motherboard ASUS PRIME B550M-K
    Motherboard ASUS PRIME B550M-K
  • A
    ASUS PRIME A520M-K AMD AM4 Micro-ATX Motherboard
Dimensions
244 mm wide x 244 mm deep x 51 mm high
Weight
785 g
ASUS PRIME A520M-K AMD AM4 Micro-ATX Motherboard
  • A
    A7V400-MX ASUS Motherboard with VT8235CE Chipset ATX Socket A-462
    A7V400-MX ASUS Motherboard with VT8235CE Chipset ATX Socket A-462
  • A
    ASUS PRIME AMD AM4 MICRO ATX MOTHERBOARD
    ASUS PRIME AMD AM4 MICRO ATX MOTHERBOARD
  • All ASUS deals and products →

    More motherboards

    • M
      MSI X470 Gaming M7 AC, AMD AM4 Socket, ATX Gaming Motherboard
      MSI X470 Gaming M7 AC, AMD AM4 Socket, ATX Gaming Motherboard
    • M
      MSI MAG B550 TOMAHAWK Chipset Socket AM4 ATX Desktop Motherboard
      MSI MAG B550 TOMAHAWK Chipset Socket AM4 ATX Desktop Motherboard
    • A
      ASUS ROG Strix X570-E Gaming WiFi II AMD AM4 X570S ATX Gaming Motherboard
      ASUS ROG Strix X570-E Gaming WiFi II AMD AM4 X570S ATX Gaming Motherboard
    • G
      Gigabyte B550 AORUS ELITE AMD B550 Chipset AM4 Socket Motherboard
      Gigabyte B550 AORUS ELITE AMD B550 Chipset AM4 Socket Motherboard
    • A
      ASUS PRIME B550M-K ARGB Micro ATX Motherboard
      ASUS PRIME B550M-K ARGB Micro ATX Motherboard
    • A
      ASUS Pro WS W790E-SAGE SE
      ASUS Pro WS W790E-SAGE SE
    • S
      Supermicro X11SCW-F Motherboard
      Supermicro X11SCW-F Motherboard
    • A
      Asus Z11PR-D16 System Board (Motherboard)
      Asus Z11PR-D16 System Board (Motherboard)