ASRock B550M-ITX/ac Board with AMD Socket AM4 CPU Support, Up to 64GB DDR4, 4K@60Hz HDMI & 5K@120Hz DisplayPort, Hyper M.2, 4x SATA 6Gb/s, 802.11ac WiFi, Gigabit LAN, USB 3.2 Type-C

ASRock B550M-ITX/ac
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Excellent value B550-ITX/ac Mini-ITX board with AMD B550 Chipset, supporting Picasso, Matisse, Matisse 2, Renoir, Cezanne and Vermeer AMD AM4 processors with DDR4 memory.

Processors with 'G' suffix have integrated graphics. Other processors will require a graphics card.

Up to 64GB of DDR4 RAM; Gigabit LAN; 4x SATA 6Gb/s with RAID 0, 1 and 10; Hyper M.2 Slot (supporting M.2 PCI Express module up to Gen4 x4 (64 Gb/s); 3x USB 3.2 Gen1 Type A and 1x USB 3.2 Gen1 Type C, 2x USB 2.0.

Rear Panel Connectors: DisplayPort 1.4; HDMI 2.1; 3x USB 3.2 Gen1 Type-A; 2x USB 2.0; 1x PS/2 Mouse/Keyboard Port; 1x USB 3.1 Gen1 Type-C; 1x RJ45 Gigabit LAN Port (Realtek RTL8111H chipset); 3x 3.5mm Audio Jacks; 2x Antenna Connectors.

Board Connectors: 1x RGB LED Header; 1x Addressable LED Header; 1x CPU Fan Connector (4-pin); 2x Chassis/Water Pump Fan Connectors (4-pin); 1x Front Panel Audio Connector; 1x USB 2.0 Header (Supports 2 USB 2.0 ports); 1x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports).

Board Power: 1x 24-pin ATX Power Connector; 1x 8-pin 12V Power Connector.

No Integrated Graphics: This board does not have integrated graphics. Processors with 'G' suffix have integrated graphics. Other processors will require a graphics card.

Compatible Processors: Compatible processors can be found in the "you may require" section on the left.

Audio: 7.1 channel HD Audio with Content Protection (Realtek ALC887 Audio Codec).

Board Expansion: PCI Express 3.0 x16 Slot, M.2 Type-E Slot populated by 433Mbps Intel 802.11ac WiFi/Bluetooth 4.2 card.

Storage Connectors: 4x SATA 6Gb/s with RAID 0, 1, 5 and 10; 1x Hyper M.2 Slot supporting Type 2280 M.2 PCI Express module up to Gen4 x4 (64 Gb/s).

Wireless LAN: Intel 802.11ac WiFi Module supports Dual Band 2.4/5GHz 802.11a/b/g/n/ac up to 433Mbps and Bluetooth 4.2/3.0 & High speed class II.

Windows Compatibility: The ASRock B550-ITX/ac is compatible with Windows 10 and Windows 11 64-bit. It is not compatible with Windows 7.

Downloads: BIOS, Documentation and Drivers, Compatible CPUs.

Package Contents: Quick Installation Guide; Support CD; I/O Shield; 2x SATA Data Cables; 1x Screw for M.2 Socket, 2 x ASRock WiFi 2.4/5 GHz Antennas.

Suitable Memory: The ASRock B550-ITX/ac supports up to 64GB on two DDR4 DIMMs (32GB per DIMM). Memory support varies with CPU type. Fully tested DIMMs are available in the 'you may also require' section.

*Unbuffered DDR4 ECC Memory is supported only with suitable processors. Check manufacturer's website for full details.

Model ASRock B550M-ITX/ac
Processor Socket AMD AM4
Architecture Ryzen
Chipset AMD B550
CPU Compatibility Picasso (Zen+ with GPU e.g. 3400G), Matisse (Zen2 e.g. 3950X), Matisse 2 (Zen2 e.g. 3600XT), Renoir (Zen2 with GPU e.g. 4300G), Cezanne (Zen3 with GPU e.g. 5700G), Vermeer (Zen3 e.g. 5800X)
Connectors 1x Fan Connector 4-pin
2x System Connector 4-pin
Displays 2
Outputs 1x DisplayPort 1.4 5120x2880 @ 120Hz max res.
1x HDMI 2.1 4096x2160 @ 60Hz max res.
Maximum 64GB
Sockets 2x DIMM
Types DDR4/DDR4 ECC 2133MHz, 2400MHz, 2666MHz, 2933MHz, 3200MHz
Ports 5
Type 1x M.2 2280 Slot up to PCIe 4.0 x4 Board
4x SATA 6Gb/s
LAN Ports 1
LAN 0: Realtek RTL8111H
Connectors 10
Types 2x USB 2.0 Type A Rear
2x USB 2.0 on pin header Board Pins
3x USB 3.2 Gen1 (5Gb/s) Type A Rear
1x USB 3.2 Gen1 (5Gb/s) Type C Rear
2x USB 3.2 Gen1 (5Gb/s) on pin header Board Pins
Type Intel 802.11ac WiFi with Bluetooth 4.2
Chipset Realtek ALC887 Supports 7.1 Channel audio
Connectors 1x 3.5mm Mic
1x 3.5mm Front Speaker
1x 3.5mm Line In
PCI-Express 1x PCI Express x16
Other I/O Ports
2x 2.4GHz/5GHz Antenna Connector
PS/2 Keyboard/Mouse Port
24-pin ATX power connector
8-pin ATX +12V power connector
Additional Board Headers
AMD Fan LED header
Addressable LED header
Front Panel Audio Connector
OS Support
Windows 10
Windows 11