ASROCK B550M-ITX/AC AM4 Motherboard

36 months

  • Supports AMD AM4 Socket Ryzen™ 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors*
  • Supports DDR4 4733+ (OC)
  • 1 PCIe 4.0 x16
  • Graphics Output: DisplayPort, HDMI
  • 7.1 CH HD Audio (Realtek ALC887 Audio Codec)
  • 4 SATA3, 1 Hyper M.2 (PCIe Gen4 x4 & SATA3)
  • 6 USB 3.2 Gen1 (2 Front, 3 Rear Type-A, 1 Rear Type-C)
  • Realtek Gigabit LAN
  • Intel® 802.11ac WiFi + BT 4.2

    *Not compatible with AMD Athlon™ Processors.

  • ASRock Super Alloy
    - Premium 60A Power Choke
    - 50A Dr.MOS
    - Sapphire Black PCB
    - High Density Glass Fabric PCB
    Intel® 802.11ac WiFi
    ASRock Full Coverage M.2 Heatsink
    ASRock Hyper M.2 (PCIe Gen4x4)
    ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
    ASRock Live Update & APP Shop

  • CPU

    - Supports AMD AM4 Socket Ryzen™ 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors*
    - Digi Power design
    - 8 Power Phase design
     

    *Not compatible with AMD Athlon™ Processors.

  • Chipset

    - AMD B550

  • Memory

    - Dual Channel DDR4 Memory Technology
    - 2 x DDR4 DIMM Slots
    - AMD Ryzen series CPUs (Vermeer) support DDR4 4600+(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
    - AMD Ryzen series CPUs (Matisse) support DDR4 4600+(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
    - AMD Ryzen series APUs (Cezanne) support DDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
    - AMD Ryzen series APUs (Renoir) support DDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
    - AMD Ryzen series APUs (Picasso) support DDR4 3600+(OC) / 3466(OC) / 3200(OC) / 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory*
    - Max. capacity of system memory: 64GB**
    - Supports Extreme Memory Profile (XMP) memory modules
    - 15μ Gold Contact in DIMM Slots
     

    *For Ryzen Series APUs (Picasso, Cezanne and Renoir), ECC is only supported with PRO CPUs.
    Please refer to below table for AMD non-XMP memory frequency support. For more details.

    Ryzen Series CPUs (Vermeer):


    Ryzen Series CPUs (Matisse):


    Ryzen Series APUs (Cezanne):


    Ryzen Series APUs (Renoir):


    Ryzen Series CPUs (Picasso):


    SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
    DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label

    **Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32-bit OS. For Windows® 64-bit OS with 64-bit CPU, there is no such limitation.

  • BIOS

    - 256Mb AMI UEFI Legal BIOS with GUI support
    - Supports "Plug and Play"
    - ACPI 5.1 compliance wake up events
    - Supports jumperfree
    - SMBIOS 2.3 support
    - CPU, CPU VDDCR_SOC, DRAM, VPPM, +1.8VSB, VDDP Voltage Multi-adjustment

  • Graphics

    - Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU*
    - DirectX 12, Pixel Shader 5.0
    - Shared memory default 2GB. Max Shared memory supports up to 16GB.**
    - Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers
    - Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
    - Supports DisplayPort 1.4 Input with max. resolution up to 5K (5120x2880)@120Hz
    - Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required)
    - Supports HDR (High Dynamic Range) with HDMI 2.1
    - Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 Ports***
    - Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports
    - Supports Microsoft® PlayReady
     

    *Actual support may vary by CPU

    **The Max shared memory 16GB requires 32GB system memory installed.

    ***Picasso supports HDCP 2.2 with HDMI 2.0 Port

  • Audio

    - 7.1 CH HD Audio (Realtek ALC887 Audio Codec)
    - Supports Surge Protection

  • LAN

    - PCIE x1 Gigabit LAN 10/100/1000 Mb/s
    - Realtek RTL8111H
    - Supports Wake-On-LAN
    - Supports Lightning/ESD Protection
    - Supports Energy Efficient Ethernet 802.3az
    - Supports PXE

  • Wireless LAN

    - Intel® 802.11ac WiFi Module
    - Supports IEEE 802.11a/b/g/n/ac
    - Supports Dual-Band (2.4/5 GHz)
    - Supports high speed wireless connections up to 433Mbps
    - Supports Bluetooth 4.2 + High speed class II

  • Slots

    AMD Ryzen series CPUs (Vermeer and Matisse)
    - 1 x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)*
    AMD Ryzen series APUs (Cezanne and Renoir)
    - 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)**
    AMD Ryzen series APUs (Picasso)
    - 1 x PCI Express 3.0 x16 Slot (PCIE1: x8 mode)**

    - 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac PCIe WiFi module (on the rear I/O)
     

    *Supports PCIe riser cards to extend x8/x8 slots

    **Supports NVMe SSD as boot disks

  • Storage

    - 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
    - 1 x Hyper M.2 Socket (M2_1), supports M Key type 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Vermeer, Matisse) or Gen3x4 (32 Gb/s) (with Cezanne, Renoir and Picasso)**
     

    *Supports NVMe SSD as boot disks
    Supports ASRock U.2 Kit

  • Connector

    - 1 x RGB LED Header*
    - 1 x Addressable LED Header**
    - 1 x CPU Fan Connector (4-pin)***
    - 2 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)****
    - 1 x 24 pin ATX Power Connector
    - 1 x 8 pin 12V Power Connector
    - 1 x Front Panel Audio Connector
    - 1 x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports ESD Protection)
    - 1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)
     

    *Supports in total up to 12V/3A, 36W LED Strip

    **Supports in total up to 5V/3A, 15W LED Strip

    ***The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.

    ****The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
    CHA_FAN1/WP and CHA_FAN2/WP can auto detect if 3-pin or 4-pin fan is in use.

  • Rear Panel I/O

    - 2 x Antenna Ports
    - 1 x PS/2 Mouse/Keyboard Port
    - 1 x HDMI Port
    - 1 x DisplayPort 1.4
    - 2 x USB 2.0 Ports (Supports ESD Protection)
    - 3 x USB 3.2 Gen1 Type-A Ports (Supports ESD Protection)
    - 1 x USB 3.2 Gen1 Type-C Port (Supports ESD Protection)
    - 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
    - HD Audio Jacks: Line in / Front Speaker / Microphone

  • Software and UEFI

    Software
    - ASRock Motherboard Utility (A-Tuning)
    - ASRock Polychrome SYNC
    - ASRock XFast LAN
    UEFI
    - ASRock Full HD UEFI
    - ASRock Instant Flash
     

    *These utilities can be downloaded from ASRock Live Update & APP Shop.

  • Support CD

    - Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar

  • Accessories

    - Quick Installation Guide, Support CD, I/O Shield
    - 2 x SATA Data Cables
    - 2 x ASRock WiFi 2.4/5 GHz Antennas

  • Hardware Monitor

    - Temperature Sensing: CPU, Chassis/Water Pump Fans
    - Fan Tachometer: CPU, Chassis/Water Pump Fans
    - Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis/Water Pump Fans
    - Fan Multi-Speed Control: CPU, Chassis/Water Pump Fans
    - Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore

  • Form Factor

    - Mini-ITX Form Factor: 6.7-in x 6.7-in, 17.0 cm x 17.0 cm
    - Solid Capacitor design

  • OS

    - Microsoft® Windows® 10 64-bit / 11 64-bit

  • Certifications

    - FCC, CE
    - ErP/EuP ready (ErP/EuP ready power supply is required)

SKU 4889260
Brand ASROCK
Unit Of Measure ea

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