





ASROCK B550M-ITX/AC Motherboard
- CPU socket
- AM4
- Chipset (MB)
- AMD B550 MB
- Form factor
- Mini ITX
- Supported memory
- DDR4
- Number of memory slots
- 2
Description
ASROCK B550M-ITX/AC is a compact Mini ITX motherboard aimed at small but serious gaming or home configurations. It works with AM4 processors on the AMD B550 chipset, making it a flexible choice for several generations of CPUs. It supports DDR4 memory and has 2 slots, which is more than enough for an ITX build focused on real performance, not just visual showroom. The added Gigabit LAN provides stable network connectivity for gaming, streaming, and work.
What you get
With this motherboard, you can build a compact system on the AM4 platform with processors from 2nd to 5th generation, meaning a wide choice from budget to very powerful CPUs. The AMD B550 chipset is a good base for a modern graphics card and fast memory, without getting stuck with expensive high-end boards. The two DDR4 slots are a logical compromise for the Mini ITX form factor – in real conditions, 2x16 GB or 2x32 GB are enough for a serious gaming and productivity build. The built-in PCIE x1 Gigabit LAN with energy-efficient and protective features is a plus if the machine will be running for long periods, often online, and in environments with potential power disturbances.
- The motherboard uses an AM4 socket, giving you access to a wide range of Ryzen processors from several generations.
- With the AMD B550 chipset, you get a modern platform suitable for gaming and working with current hardware.
- The compact Mini ITX form factor is ideal for small cases, HTPC, or SFF gaming builds, without sacrificing essential functions.
- Support for DDR4 memory with 2 slots allows you to easily reach sufficient capacity for gaming and multitasking.
- The built-in PCIE x1 Gigabit LAN 10/100/1000 Mb/s provides stable and fast wired connection for online gaming and streaming.
- The network controller Realtek RTL8111H supports Wake-On-LAN, Energy Efficient Ethernet 802.3az, PXE, and Lightning/ESD protection for more reliable operation.
- Official support for Microsoft Windows 10 64-bit ensures hassle-free installation of the most popular gaming OS.
- 36 months warranty gives you peace of mind for long-term use in everyday or gaming mode.
Who is it suitable for
This motherboard is suitable if you want a compact AM4 system – an SFF gaming build, a small work computer, or HTPC, but without sacrificing the stability and functionality of a normal ATX board. It is also suitable if you plan to use an existing or older Ryzen CPU and gradually upgrade within the supported generations. It is not the optimal choice if you need many RAM slots or multiple expansion cards, as the Mini ITX form factor is limited by definition.
The combination of AM4, B550 chipset, Mini ITX size, and reliable Gigabit LAN makes ASROCK B550M-ITX/AC a very sensible core for a small but serious configuration that will serve long and stable.
Full specifications
- Manufacturer
-
Asrock
- Product Code
- B550M-ITX/AC
- CPU socket
-
AM4
- Chipset (MB)
- AMD B550
- Form factor
- Mini ITX
- Supported processors
- AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors
- Supported memory
-
DDR4
- Number of memory slots
- 2
- Maximum RAM capacity
- 64 GB
- Memory frequency (MHz)
-
up to DDR4 4733+ (OC) with Ryzen APUs (Cezanne/Renoir)up to DDR4 4600+ (OC) with Ryzen CPUs (Vermeer/Matisse)
- Support for dual-channel memory
- Yes
- Built-in audio
-
7.1 CH HD AudioRealtek ALC887/897 Audio CodecSurge Protection
- Built-in Wi-Fi
-
Wi-Fi 802.11 a/b/g/n/ac Dual Band
- Built-in 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
- SATA interface
- 4 x SATA3 6.0 Gb/s connectors
- RAID support
-
RAID 0RAID 1RAID 10
- M2 slot
-
1 x Hyper M.2 Socket (M Key, 2280, supports M.2 SATA3 6.0 Gb/s and PCIe NVMe module up to Gen4x4 (64 Gb/s) with Vermeer/Matisse or Gen3x4 (32 Gb/s) with Cezanne/Renoir/Picassosupport for NVMe boot diskNVMe is not supported with AMD Athlon 3000G)
- Power connector
-
1 x 24-pin ATX main power connector1 x 8-pin 12V power connector
- The set includes
-
I/O shield2 x SATA data cables2 x ASRock WiFi 2.4/5 GHz antennas
- BIOS
-
256Mb AMI UEFI Legal BIOS with GUIsupport for Plug and Play, ACPI 5.1 wake events, jumperfree, SMBIOS 2.3multi-settings for voltages (CPU, CPU VDDCR_SOC, DRAM, VPPM, +1.8VSB, VDDP)
- Dimensions
- 17.0 cm x 17.0 cm
- Others
- Mini-ITX, Solid Capacitor design
- Processor generation
-
4th generation2nd generation5th generation3rd generation
- Warranty
- 36 months
- OS
-
Microsoft Windows 10 64-bit
- Expansion slots
-
1 x PCI Express 4.0 x16 (x16 mode) with Ryzen CPUs (Vermeer/Matisse)1 x PCI Express 3.0 x16 (x16 mode) with Ryzen APUs (Cezanne/Renoir)1 x PCI Express 3.0 x16 (x8 mode) with Ryzen APUs (Picasso)1 x vertical M.2 Socket (Key E) for the included WiFi-802.11ac PCIe module
- USB ports
-
Rear: 2 x USB 2.0 Type-ARear: 3 x USB 3.2 Gen1 Type-ARear: 1 x USB 3.2 Gen1 Type-CInternal: 1 x USB 2.0 header (supports 2 x USB 2.0 ports)Internal: 1 x USB 3.2 Gen1 header (supports 2 x USB 3.2 Gen1 ports)
- Rear I/O panel
-
2 x antenna port (for WiFi)1 x PS/2 combo port for mouse/keyboard1 x HDMI 2.1 port1 x DisplayPort 1.42 x USB 2.0 Type-A3 x USB 3.2 Gen1 Type-A1 x USB 3.2 Gen1 Type-C1 x RJ‑45 Gigabit LAN (with ACT/LINK and SPEED LED)3 x audio jacks (Line In / Front Speaker / Microphone)
- Graphics
-
Integrated AMD Radeon Vega series graphics in Ryzen APUs (depending on CPU)HDMI 2.1 output up to 4096x2160 @ 60 HzDisplayPort 1.4 output up to 5120x2880 @ 120 HzSupport for DirectX 12, Pixel Shader 5.0, HDR, HDCP 2.3 (HDCP 2.2 for Picasso via HDMI 2.0), 4K UHD playback, Microsoft PlayReady
- Supported technologies
-
ASRock Super Alloy (Premium 60A Power Choke, 50A Dr.MOS, Sapphire Black PCB, High Density Glass Fabric PCB)ASRock Full Coverage M.2 HeatsinkASRock Hyper M.2 (PCIe Gen4x4)ASRock Full Spike Protection (for all USB, Audio, LAN ports)ASRock Live Update & APP ShopDual Channel DDR4 Memory, XMP supportASRock Motherboard Utility (A-Tuning)ASRock Polychrome SYNCASRock Full HD UEFIASRock Instant Flash
- Connectors
-
1 x 24-pin ATX power connector1 x 8-pin 12V power connector1 x CPU Fan connector (4-pin, max. 1A/12W)2 x Chassis/Water Pump Fan connectors (4-pin, up to 2A/24W, Smart Fan Speed Control, auto-detection 3/4-pin)1 x Front Panel Audio connector1 x USB 2.0 header (2 x USB 2.0 ports, ESD protection)1 x USB 3.2 Gen1 header (2 x USB 3.2 Gen1 ports, ESD protection)
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