90-MXBQK0-A0UAYZ ASRock ATX Single AM5 4 DIMM Slots Mainboard

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Happyware Article Number:

SH5M8911-499336

Manufacturer Number:

90-MXBQK0-A0UAYZ

Brand:

ASRock

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Description Technical details Warranty & Technical Support Reviews Bulk Deals

90-MXBQK0-A0UAYZ

High-Performance ATX AM5 Workstation Motherboard featuring DDR5 and PCIe 5.0 expansion with the 90-MXBQK0-A0UAYZ

The 90-MXBQK0-A0UAYZ is an ATX baseboard built around the AMD B850 chipset for AMD Ryzen on socket AM5, targeting desktop-workstation builds that need predictable I/O behavior and clean lane allocation. With 4 DDR5 DIMM slots in dual-channel, the platform scales memory capacity and bandwidth for creator pipelines, lab validation systems, and general-purpose engineering desktops without constraining future upgrades.

For expansion and storage, 90-MXBQK0-A0UAYZ prioritizes a PCIe 5.0 x16 slot for next-generation GPUs, complemented by an additional PCIe 4.0 x16 mechanical slot (x4 electrical) for high-speed add-in cards. The storage topology supports mixed media designs via multiple M.2 sockets for NVMe (PCIe Gen4 and Gen3) alongside 4 SATA III ports with RAID capability, enabling tiered datasets and resilient local scratch. Integrated display outputs (HDMI/DisplayPort) and 2.5GbE networking align the board with multi-display productivity and fast NAS-backed workflows.

Why Choose the 90-MXBQK0-A0UAYZ?

The 90-MXBQK0-A0UAYZ delivers a practical density-to-performance ratio for AM5 workstations by combining PCIe 5.0 GPU readiness, high NVMe concurrency, and RAID-capable SATA in a standard ATX footprint. This architecture supports scalable deployment from single engineering desktops to consistent lab images, while BIOS Flashback/Instant Flash and AMI UEFI controls help reduce downtime during platform rollouts and firmware standardization.

ASRock focuses on stable power and signal design, validation-driven firmware, and production-friendly board layouts that align with modern data centre and enterprise desktop standards, including predictable peripheral compatibility and long-term maintainability across CPU and memory refresh cycles.

Key Applications:

AM5 workstation builds with PCIe Gen5 GPU
NVMe-heavy creator desktops
Lab and dev systems with mixed SATA and NVMe storage
Multi-display productivity endpoints
2.5GbE connected engineering workstations

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your 90-MXBQK0-A0UAYZ rollout requirements and an extended warranty of up to 6 years for additional security when standardizing critical workstation platforms.

Technical details of 90-MXBQK0-A0UAYZ

CPU Socket: AM5

Onboard Memory: No

RAID Support: Yes

CPU Manufacturer: AMD

CPU Supported Type: Ryzen

Form Factor: ATX

Chipset: AMD B850

RAM Maximum Capacity: 256GB

Max RAM Frequency : 4000MHz

RAM Slots: 4 DIMM DDR5

RAM Channels: Dual-Channel

PCIe Slots: 1 PCIe 4.0 x16, 1 PCIe 5.0 x16

M.2 Slots: 1 CNVi M.2 2230 E-Key, 1 PCIe 3.0 M.2 2230, M.2 2242, M.2 2260, M.2 2280 M-Key, 3 PCIe 4.0 M.2 2280 M-Key

Network Ports: 1 RJ45 2.5 Gbps

Onboard Network: Ethernet

Onboard CPU: No

RAID Support: Yes

Onboard Graphic: Yes

Video Output: 1x DisplayPort, 1x HDMI

USB Ports: 1x USB 3.2 Gen 1 Type-C, 1x USB 3.2 Gen 2 Type-C, 1x USB 3.2 Gen 2x2 Type-C, 4x USB 2.0 Type-A, 4x USB 3.2 Gen 1 Type-A, 6x USB 2.0 Type-A

BIOS: AMI UEFI

Onboard Audio Chipset: Realtek ALC897

How long is the Warranty and how you can get technical support for 90-MXBQK0-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.