Asrock B550M-ITX-AC AM4 Mini-ITX Motherboard

Features

B550M-ITX/ac

• Supports AMD AM4 Socket Ryzen™ 3000, 4000 G-Series and 5000 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

Specifications

Unique Feature

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, 4000 G-Series and 5000 Series Desktop Processors*

- Digi Power design

- 8 Power Phase design

Chipset

- AMD B550

Memory

- Dual Channel DDR4 Memory Technology

- 2 x DDR4 DIMM Slots

- 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 (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*

- Max. capacity of system memory: 64GB**

- Supports Extreme Memory Profile (XMP) memory modules

- 15μ Gold Contact in DIMM Slots

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

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

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

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

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 (Matisse)

- 1 x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)*

AMD Ryzen series APUs (Renoir)

- 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 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 Matisse) or Gen3x4 (32 Gb/s) (with Renoir)**

*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

Hardware Monitor

- Quick Installation Guide, Support CD, I/O Shield

- 2 x SATA Data Cables

- 2 x ASRock WiFi 2.4/5 GHz Antennas

Accessories

- 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

Certifications

- FCC, CE

- ErP/EuP ready (ErP/EuP ready power supply is required)