ASRock B550M-ITX/ac Mini-ITX AMD AM4 Motherboard

The ASRock B550M-ITX/ac Motherboard is a compact yet powerful Mini-ITX solution designed for high-performance AMD builds. Built on the AMD B550 chipset, it supports 3rd Gen AMD Ryzen processors and delivers advanced features including PCIe 4.0, high-speed storage and integrated Wi-Fi connectivity.

With its 8-phase power design, premium components and robust thermal solutions, this motherboard ensures stable performance even under demanding workloads, making it ideal for gaming PCs, small form factor systems and high-performance home builds.

Key Features & Benefits

✔ Mini-ITX Compact Design
Perfect for small form factor builds without compromising on performance.

✔ AMD B550 Chipset with AM4 Support
Compatible with 3rd Gen AMD Ryzen processors and future AM4 CPUs.

✔ PCIe 4.0 x16 Slot
Supports next-generation GPUs and high-speed expansion devices.

✔ Hyper M.2 PCIe Gen4 x4 Slot
Ultra-fast SSD support with significantly improved data transfer speeds.

✔ Dual Channel DDR4 Memory
Supports up to 64GB DDR4 RAM with speeds up to 4733+ MHz (OC).

✔ Integrated Wi-Fi & Bluetooth
Built-in Intel 802.11ac Wi-Fi and Bluetooth 4.2 for seamless connectivity.

✔ 8 Power Phase Design
Stable power delivery for improved performance and overclocking capability.

✔ Polychrome RGB Sync Support
Customise lighting with RGB and addressable RGB headers using ASRock Polychrome RGB.

✔ Dual Display Outputs
HDMI and DisplayPort for integrated graphics support with Ryzen APUs.

Technical Specifications

General

Product
ASRock B550M-ITX/ac

Manufacturer
ASRock

Form Factor
Mini-ITX

Chipset
AMD B550

Socket
AM4

CPU Support

Compatible CPUs
3rd Gen AMD Ryzen / Future AM4 Ryzen Processors

Power Design
8 Power Phase Design

Memory

Memory Slots
2 × DDR4 DIMM

Maximum Capacity
64GB

Memory Speeds
Up to 4733+ MHz (OC)

Memory Type
DDR4 Dual Channel

Expansion Slots

1 × PCIe 4.0 x16 Slot (Ryzen CPUs)
1 × PCIe 3.0 x16 Slot (Ryzen APUs)

Storage

1 × Hyper M.2 (PCIe Gen4 x4 / SATA3)
4 × SATA III 6Gb/s Ports
RAID Support (0, 1, 10)

Graphics Output

1 × HDMI (up to 4K @ 60Hz)
1 × DisplayPort 1.4

Networking

LAN
Realtek Gigabit LAN (RTL8111H)

Wireless
Intel 802.11ac Wi-Fi (Dual Band)

Bluetooth
Bluetooth 4.2

Audio

Codec
Realtek ALC887

Channels
7.1 HD Audio

Rear I/O Ports

1 × HDMI
1 × DisplayPort
3 × USB 3.2 Gen1 Type-A
1 × USB 3.2 Gen1 Type-C
2 × USB 2.0
1 × RJ-45 LAN Port
HD Audio Jacks
2 × Wi-Fi Antenna Ports
1 × PS/2 Combo Port

Internal Connectors

1 × RGB Header
1 × Addressable RGB Header
1 × USB 3.2 Gen1 Header
1 × USB 2.0 Header
3 × Fan Headers (CPU + Chassis/Water Pump)

Dimensions

170 × 170 mm (Mini-ITX)

Why Choose the ASRock B550M-ITX/ac

The B550M-ITX/ac is ideal for users building compact yet powerful systems, offering a strong combination of PCIe 4.0 performance, fast storage, integrated Wi-Fi and solid power delivery. Whether you're building a small gaming PC or a high-performance workstation, this motherboard delivers excellent capability in a space-saving design.