ASRock B850M-X AMD AM5 Socket Motherboard, Micro-ATX, 2x DDR5 Slots, 2x M.2 Sockets, 2.5GbE LAN, 1x DisplayPort / 1x HDMI Port

ASRock X-Series Micro ATX Motherboard – AMD AM5, DDR5, PCIe Gen5

The ASRock X-Series motherboard delivers a high-value platform that balances performance, versatility, and a compact micro ATX form factor. Designed for AMD Socket AM5 Ryzen 9000, 8000, and 7000 Series processors, it is built to handle everything from professional productivity to everyday computing, with a strong focus on affordability, reliability, and efficiency.

Key Features

• CPU Support: AMD Socket AM5 Ryzen 9000 / 8000 / 7000 Series processors
• Chipset: AMD B850
• Form Factor: Micro ATX (9.6" x 8.9", 24.4 cm x 22.6 cm)
• Memory: Dual Channel DDR5, up to 8200+ (OC)
• Graphics: Integrated AMD RDNA graphics (CPU-dependent) with HDMI & DisplayPort
• Expansion: PCIe Gen5 x16, PCIe Gen4 slots, M.2 Key E for WiFi
• Storage: PCIe Gen5 Blazing M.2, PCIe Gen4 Hyper M.2, 4 x SATA3
• Networking: Realtek Dragon 2.5G LAN
• Audio: Realtek ALC897 7.1 CH HD Audio with Nahimic Audio
• Connectivity: USB 3.2 Gen1 Type-C (rear & front), multiple USB 3.2 Gen1 & USB 2.0
• Lighting: Polychrome RGB & SignalRGB support
• DIY Friendly: Reinforced PCIe 5.0 steel slot, BIOS Flashback, Auto Driver Installer

Performance & Power Delivery

• 6+1+1 Phase Power Design with Dr.MOS
  Sturdy components and smooth power delivery help enhance CPU performance, ideal for demanding workloads and gaming. Dr.MOS power stages deliver higher current and better thermal efficiency than traditional MOSFETs for improved stability.

• 6-Layer PCB
  A 6-layer PCB helps maintain stable signal traces and efficient power distribution, assisting lower temperatures and higher energy efficiency—especially beneficial for DDR5 memory overclocking.

• DDR5 XMP & EXPO Support
  Supports DDR5 ECC/non-ECC un-buffered memory and pre-tested Intel XMP/AMD EXPO profiles. Built with high-quality materials to help enthusiasts enjoy boosted DDR5 performance by simply enabling the supported memory profiles.

High-Speed Storage

• PCIe Gen5 Blazing M.2 (CPU)
• 1 x Blazing M.2 (M2_1, Key M), type 2280

• PCIe Gen5x4 (128 Gb/s) mode
  Accommodates the latest PCIe 5.0 SSDs, designed to offer twice the bandwidth of the previous generation.

• PCIe Gen4 Hyper M.2 (CPU)

• 1 x Hyper M.2 (M2_2, Key M), type 2260/2280

• PCIe Gen4x4 (64 Gb/s) mode

• SATA Storage (Chipset)

• 4 x SATA3 6.0 Gb/s connectors

• RAID Support

• RAID 0, 1, 10 for SATA storage devices
• RAID 0, 1, 10 for M.2 NVMe storage devices

Intelligent Cooling

• Aluminum Heatsink Design
  Optimized aluminum heatsinks enhance heat dissipation during heavy workloads such as gaming or productivity, helping maintain system stability and durability.

• Fan & Cooling Headers

• 2 x CPU Fan (4-pin, Smart Fan Speed Control)
• 3 x Chassis/Water Pump Fan (4-pin, Smart Fan Speed Control)
• 1 x AIO Pump Fan (4-pin, Smart Fan Speed Control)

Networking & Connectivity

• Dragon 2.5G LAN (Realtek RTL8125BG)
• 10/100/1000/2500 Mb/s

• Dragon 2.5G LAN software with:

  • Smart auto bandwidth control
  • Visual UI with network usage statistics
  • Optimized defaults for Game/Browser/Streaming modes
  • User-customized priority control

• Front USB 3.2 Gen1 Type-C
  Front panel USB 3.2 Gen1 Type-C header with up to 5 Gbps transfer rate and reversible connector design.

Immersive Audio

• Realtek ALC897 7.1 CH HD Audio Codec

• Nahimic Audio
  Designed for an engaging, detailed listening experience across headphones, headsets, speakers, USB, Wi-Fi, analog output, or HDMI. Nahimic’s algorithms focus on:

• Static Noise Suppression

• Echo Cancellation
• Lateral Sound Cancellation
• Voice Stabilizer
• Sound Tracker (360° visual sound radar for gaming)

Compatible with popular audio devices and tools, Nahimic aims to enhance clarity, reduce noise, and support more comfortable long sessions.

Stylish Lighting & Customization

• Polychrome RGB
• Onboard RGB headers and addressable RGB headers
• Connect compatible RGB LED strips, CPU fans, coolers, chassis, and more

• Synchronize lighting across Polychrome RGB Sync-certified accessories to create custom effects

• SignalRGB Integration
  SignalRGB unifies RGB devices for seamless customization, game-reactive effects, macro automation, and system monitoring. The partnership brings advanced lighting control and enhanced compatibility with a wide range of RGB devices.

DIY-Friendly Design

• Reinforced Steel Slot (PCIe 5.0)
• 1 x PCIe 5.0 x16 slot with reinforced steel armor
• Extra anchor points, stronger latch, and improved signal stability

• Helps secure heavy graphics cards and support PCIe 5.0 standard

• Dual Graphics Outputs

• 1 x HDMI 2.1 (TMDS/FRL 8G compatible, HDR, HDCP 2.3, up to 4K 120Hz)

• 1 x DisplayPort 1.4 with DSC (HDCP 2.3, up to 4K 120Hz)

• Auto Driver Installer
  ASRock preinstalls the LAN driver to simplify driver setup:

• Install Auto Driver Installer
• Update required drivers

• Done

• BIOS Flashback
  Update to the latest BIOS with just a USB drive and power supply—no CPU, RAM, or other components required.

Specifications

Unique Features

• Superb productivity
• PCIe Gen5 (Graphics, M.2)
• Dual Channel DDR5
• Rock-solid durability
• 6+1+1 Power Phase, Dr.MOS for VCore
• Ultrafast connectivity with 2.5G LAN
• EZ Update & Troubleshooting:
• BIOS Flashback Button
• ASRock Auto Driver Installer
• ASRock Post Status Checker

CPU

Chipset

Memory

BIOS

Graphics

Audio

LAN

Expansion Slots

Storage

RAID

USB

(Quantities and locations as listed under “Rear Panel I/O” and “Connectors” below.)

Internal Connectors & Headers

• 1 x Thermistor cable header
• 1 x SPI TPM header
• 1 x Power LED & Speaker header
• 1 x RGB LED header
• 3 x Addressable LED headers
• 2 x CPU Fan connectors (4-pin)
• 3 x Chassis/Water Pump Fan connectors (4-pin)
• 1 x AIO Pump Fan connector (4-pin)
• 1 x 24-pin ATX power connector
• 1 x 8-pin 12V power connector (Hi-Density)
• 1 x Front panel audio connector
• 2 x USB 2.0 headers (supporting 4 x USB 2.0 ports)
• 1 x USB 3.2 Gen1 header (supports 2 x USB 3.2 Gen1 ports)
• 1 x Front panel Type-C USB 3.2 Gen1 header

Rear Panel I/O

• 2 x Antenna mounting points
• 1 x HDMI port
• 1 x DisplayPort 1.4
• 1 x USB 3.2 Gen1 Type-C port
• 3 x USB 3.2 Gen1 Type-A ports
• 2 x USB 2.0 ports
• 1 x RJ-45 LAN port
• 1 x BIOS Flashback button
• HD Audio jacks: Line In / Front Speaker / Microphone

Software & UEFI

• Software
• ASRock Motherboard Utility (A-Tuning)
• ASRock Dragon 2.5G LAN Software

• ASRock Polychrome SYNC

• UEFI

• ASRock EZ Mode
• ASRock Full HD UEFI
• ASRock Auto Driver Installer
• ASRock Instant Flash

Accessories

• 1 x I/O shield
• 2 x SATA data cables
• 1 x Screw for M.2 socket

Operating System & Certifications

• OS Support
• Microsoft Windows 10 64-bit

• Microsoft Windows 11 64-bit

• Certifications

• FCC
• CE
• ErP/EuP ready (ErP/EuP ready power supply required)