90-MXBDK0-A0UAYZ ASRock Micro-ATX Single AM4 4 DIMM Slots Mainboard

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Product line:

ASRock Pro

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€129.00

In stock

Happyware Article Number:

SH1M3692-486655

Manufacturer Number:

90-MXBDK0-A0UAYZ

Brand:

ASRock

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Description Technical details Warranty & Technical Support Reviews Bulk Deals

90-MXBDK0-A0UAYZ

High-Density Micro-ATX AMD B550 Workstation Motherboard featuring PCIe 4.0 expansion with the 90-MXBDK0-A0UAYZ

The 90-MXBDK0-A0UAYZ is an ASRock Pro Series Micro-ATX motherboard built on the AMD B550 chipset for the AM4 Ryzen platform, engineered for compact workstation and small-business systems that require discrete GPU capability and balanced I/O. Its PCIe topology supports modern accelerators and high-throughput NVMe storage while keeping board space optimized for edge and branch deployments.

With dual-channel DDR4 across 4 DIMM slots, the 90-MXBDK0-A0UAYZ scales memory capacity up to 128GB and supports ECC or non-ECC (CPU-dependent) to align with reliability requirements. Storage architecture combines 2 M.2 slots—one PCIe 4.0 x4 for primary NVMe and a secondary M.2 supporting PCIe 3.0 x2/SATA—plus 6 SATA 6Gb/s ports with RAID support for resilient boot and data tiers. Expansion is anchored by a PCIe 4.0 x16 slot for GPUs, complemented by additional PCIe slots for capture, NICs, or HBA add-ins. For deployments using Ryzen processors with integrated graphics, multiple display outputs enable service and staging without a discrete GPU.

Why Choose the 90-MXBDK0-A0UAYZ?

The 90-MXBDK0-A0UAYZ delivers an efficient density-to-performance profile by pairing AM4 compute flexibility with PCIe 4.0 bandwidth in a Micro-ATX footprint suited to constrained chassis and remote sites. It emphasizes predictable scalability, straightforward component standardization, and enterprise-ready platform controls through UEFI firmware and TPM header integration.

ASRock focuses on practical platform engineering, prioritizing stable power delivery, firmware maturity, and standards-aligned connectivity so IT teams can deploy consistent builds across workstation, creator, and branch environments with repeatable qualification.

Key Applications:

Creator workstations with discrete GPU acceleration
Small business file and application servers
Edge and branch compute nodes
RAID-capable SATA plus NVMe storage builds
Virtualization and lab environments

At Happyware - Server Hardware you benefit from non-binding offers tailored to your 90-MXBDK0-A0UAYZ platform rollout and an extended warranty of up to 6 years to support longer lifecycle planning for distributed deployments.

Technical details of 90-MXBDK0-A0UAYZ

CPU Socket:

AM4

RAID Support:

Yes

CPU Manufacturer:

AMD

CPU Supported Type:

Ryzen

Form Factor:

Micro-ATX

Chipset:

AMD B550

RAM Maximum Capacity:

128GB

Max RAM Frequency :

4733MHz

RAM Slots:

4 DIMM DDR4

RAM Channels:

Dual-Channel

PCIe Slots:

1 PCIe 3.0 x1 1 PCIe 3.0 x16 1 PCIe 4.0 x16

M.2 Slots:

1 PCIe 3.0 x2/SATA M.2 2280 M-Key 1 PCIe 4.0 x4 M.2 2280 M-Key 1 Unspecified M.2 2230 E-Key

Network Ports:

1 RJ45 1 Gbps

ECC Support:

ECC Non-ECC

Onboard Network:

Ethernet

RAID Support:

Yes

Onboard Graphic:

Yes

Video Output:

1x DisplayPort 1x HDMI 1x VGA

USB Ports:

1x USB 3.2 Gen 2 ports 1x USB Type-C 2x USB 2.0/1.1 ports 4x USB 3.2 Gen 1 ports

Other Ports:

1x VGA Port 1x PS/2 keyboard/mouse port 1x audio line-in - mini-jack 1x USB 3.2 Gen 2 ports 4x USB 3.2 Gen 1 ports 1x audio line-out - mini-jack 1x DisplayPort 1x microphone - mini-jack 2x USB 2.0 Type-A 1x USB Type-C port 1x RJ-45 LAN Port 1x HDMI port

Trusted Platform Module (TPM):

Yes

BIOS:

AMI UEFI

Wi-Fi Support:

None

Onboard Audio Chipset:

Realtek ALC1200

Embedded:

How long is the Warranty and how you can get technical support for 90-MXBDK0-A0UAYZ

Warranty:	12 months (part)
RMA Url:	https://www.asrock.com/support/?cat=RMA
Description:	Items must be returned first for RMA processing. No advanced replacements.