ASRock B550M-ITX/ac AMD AM4 Socket Motherboard

ASRock B550M-ITX/ac Mini-ITX Motherboard

The ASRock B550M-ITX/ac is a Mini-ITX AMD motherboard designed for compact, high-performance systems. It supports 3rd Gen AMD AM4 Ryzen and future AMD Ryzen processors, fast DDR4 memory, PCIe 4.0 graphics and storage, and integrated Wi-Fi with Bluetooth.

Key Features

• CPU Support
• Supports 3rd Gen AMD AM4 Ryzen and future AMD Ryzen processors
• Digi Power design with 8 Power Phase Design

• ASRock Super Alloy with Premium 60A Power Choke and 50A Dr.MOS

• Memory

• Dual Channel DDR4 Memory Technology
• 2 x DDR4 DIMM slots, up to 64GB
• Supports ECC & non-ECC, un-buffered memory
• Supports Extreme Memory Profile (XMP) modules

• AMD Ryzen series CPUs (Matisse) and Ryzen series APUs support extensive DDR4 OC frequencies up to 4733+ (OC), depending on CPU type

• Graphics & Display

• 1 x PCIe 4.0 x16 slot (Ryzen CPUs) / PCIe 3.0 x16 (Ryzen APUs)
• Integrated AMD Radeon Vega Series Graphics in Ryzen Series APUs
• Dual graphics outputs: HDMI 2.1 and DisplayPort 1.4
• HDMI 4K @ 60Hz, DisplayPort up to 5K (5120x2880) @ 120Hz

• Supports HDR, Deep Color (12bpc), xvYCC, HBR audio, HDCP 2.3 and 4K UHD playback

• Audio

• 7.1 CH HD Audio with Realtek ALC887 Audio Codec

• Supports surge protection

• Storage

• 4 x SATA3 6.0 Gb/s (RAID 0/1/10, NCQ, AHCI, Hot Plug)
• 1 x Hyper M.2 Socket (M2_1)
  • Supports M Key 2280 M.2 SATA3 module
  • Supports M.2 PCIe up to Gen4 x4 (64 Gb/s) with Matisse or Gen3 x4 (32 Gb/s)

• ASRock Full Coverage M.2 Heatsink / M.2 Armor for SSD cooling

• Networking

• Realtek Gigabit LAN (RTL8111H, 10/100/1000 Mb/s) with Lightning/ESD Protection, Wake-On-LAN, PXE, and Energy Efficient Ethernet 802.3az

• Intel 802.11ac WiFi + Bluetooth 4.2

  • Dual-band 2.4/5 GHz
  • Wireless speeds up to 433 Mbps
  • High speed class II Bluetooth

• USB Connectivity

• Total 6 x USB 3.1/3.2 Gen1
  • 2 x front (via header)
  • 3 x rear Type-A
  • 1 x rear Type-C
• Rear I/O also includes 2 x USB 2.0
• Dual USB 3.2 Gen1 (Type-A + Type-C) on rear I/O, up to 5 Gbps

• ESD Protection on all USB ports

• RGB Lighting

• Polychrome RGB with onboard RGB header and addressable RGB header

• Supports compatible LED strips, CPU fans, coolers, chassis, and Polychrome RGB Sync-certified accessories

• Power & Cooling

• 8 Power Phase design with sturdy components and smooth CPU power delivery
• Focus on overclocking capabilities and low temperatures
• 1 x CPU Fan (4-pin)
• 2 x Chassis/Water Pump Fan (4-pin) with Smart Fan Speed Control
• Hardware monitoring for CPU and chassis/water pump fans, temperature, and voltages

Specifications

General

Chipset & BIOS

Memory Support (Summary)

• Dual Channel DDR4
• 2 x DIMM slots, up to 64GB
• Wide range of supported OC and non-OC DDR4 frequencies for Ryzen CPUs (Matisse) and Ryzen APUs, including 2133 up to 4733+ (OC), depending on processor type

Expansion Slots

Internal Connectors

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

Rear I/O Panel

• 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 (ESD Protection)
• 3 x USB 3.2 Gen1 Type-A (ESD Protection)
• 1 x USB 3.2 Gen1 Type-C (ESD Protection)
• 1 x RJ-45 LAN (with ACT/LINK and SPEED LEDs)
• HD Audio Jacks: Line In / Front Speaker / Microphone

Software & Utilities

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

Support CD

• Drivers and utilities
• AntiVirus software (trial version)
• Google Chrome browser and toolbar

Included Accessories

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

Hardware Monitoring

• Temperature sensing: CPU, Chassis/Water Pump Fans
• Fan tachometer: CPU, Chassis/Water Pump Fans
• Quiet Fan (auto fan speed by CPU temperature)
• Fan multi-speed control: CPU, Chassis/Water Pump Fans
• Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore

Operating System & Certification

• OS Support: Microsoft Windows 10 64-bit
• Certifications: FCC, CE, ErP/EuP ready (ErP/EuP ready power supply required)