ASRock B550 Phantom Gaming-ITX/ax AM4 AMD B550 SATA 6Gb/s Mini ITX AMD Motherboard

Model

Brand	ASRock
Model	B550 Phantom Gaming-ITX/ax

Supported CPU

CPU Socket Type	AM4
CPU Type	Supports AMD Ryzen 5000 Series / 4000 G-Series / 3000 Series Processors* * Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G. * BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU. Refer to ASRock website for CPU support list.

Chipsets

Chipset	AMD B550

Memory

Number of Memory Slots	2x288pin (DDR4)
Memory Standard	DDR4 5400(OC)+ / 5300(OC) / 5200(OC) / 5100(OC) / 5000(OC) / 4933(OC) / 4866(OC) / 4800(OC) / 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 (AMD Ryzen series APUs (Renoir)) DDR4 5100(OC)+ / 5000(OC) / 4933(OC) / 4866(OC) / 4800(OC) / 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 (AMD Ryzen series CPUs (Matisse))
Maximum Memory Supported	64GB
Channel Supported	Dual Channel
ECC Supported	Yes
Buffer Supported	Un-buffered

Expansion Slots

PCI Express 4.0 x16	1 x PCI Express 4.0 x16* * Supports NVMe SSD as boot disks. * Actual support may vary by CPU.
Other Slots	1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ax module (on the rear I/O) 15µ Gold Contact in VGA PCIe Slot (PCIE1)

Storage Devices

SATA 6Gb/s	4 x SATA 6Gb/s
M.2	1 x Hyper M.2 Socket (M2_1), supports M Key type 2280 M.2 PCI Express module up to Gen4x4 (64Gb/s) (with Matisse) or Gen3x4 (32Gb/s) (with Renoir)* 1 x Ultra M.2 Socket, supports M Key type 2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s)* * Supports NVMe SSD as boot disks. * Supports ASRock U.2 Kit (M2_1).
SATA RAID	0/1/10

Onboard Video

Onboard Video Chipset	Supported only by CPU with integrated graphic

Onboard Audio

Audio Chipset	Realtek ALC1220
Audio Channels	7.1 Channels

Onboard LAN

LAN Chipset	Intel I225-V
Max LAN Speed	10/100/1000/2500Mbps
Wireless LAN	Intel 802.11ax WiFi Module IEEE 802.11a/b/g/n/ax
Bluetooth	Bluetooth 5.1

Rear Panel Ports

Back I/O Ports	2 x Antenna Ports 1 x HDMI Port 1 x DisplayPort 1.4 1 x USB 3.2 Gen2 Type-A Port (10Gb/s) (Supports ESD Protection) 1 x USB 3.2 Gen2 Type-C Port (10Gb/s) (Supports ESD Protection) 4 x USB 3.2 Gen1 Ports (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

Internal I/O Connectors

Onboard USB

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) 1 x Front Panel Type C USB 3.2 Gen2 Header (Supports ESD Protection)

Other Connectors

1 x RGB LED Header* 1 x Addressable LED Header * Supports in total up to 5V/3A, 15W LED Strip. 1 x CPU Fan Connector (4-pin) * The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power. 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control) 1 x Chassis/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control) * The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power. * CPU_FAN2/WP and CHA_FAN1/WP can auto detect if 3-pin or 4-pin fan is in use. 1 x Front Panel Audio Connector (15µ Gold Audio Connector) * Supports in total up to 12V/3A, 36W LED Strip.

Physical Spec

Form Factor	Mini ITX
LED Lighting	RGB
Dimensions (W x L)	6.7" x 6.7"
Power Pin	1 x 24-pin ATX Power Connector (Hi-Density Power Connector) 1 x 8-pin 12V Power Connector (Hi-Density Power Connector)

Windows 11 Compatibility

Windows 11	Supported

Features

Features

Gaming Armor: Power - Hi-Density Power Connectors (24-pin and 8-pin) Memory - 15µ Gold Contact in DIMM Slots VGA Card - 15µ Gold Contact in VGA PCIe Slot (PCIE1) Internet - Intel 2.5G LAN Audio - Nahimic Audio Unique Feature: ASRock USB 3.2 Gen2 - ASRock Front Panel USB 3.2 Gen2 Type-C Header (10Gb/s) - ASRock USB 3.2 Gen2 Type-A Port (10Gb/s) - ASRock USB 3.2 Gen2 Type-C Port (10Gb/s) ASRock Super Alloy - Premium 90A Power Choke - 90A Dr.MOS - Premium Memory Alloy Choke (Reduces 70% core loss compared to iron powder choke) - Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors) - I/O Armor - Matte Black PCB - High Density Glass Fabric PCB - 8 Layer PCB - 2oz Copper PCB Intel 2.5G LAN Intel 802.11ax WiFi ASRock Steel Slot Gen4 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 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, Chipset 1.05V, 2.50V, +1.8V, VDDP Voltage Multi-adjustment Software and UEFI: Software - ASRock Motherboard Utility (Phantom Gaming Tuning) - ASRock Polychrome SYNC - ASRock Key Master - ASRock XFast LAN UEFI - ASRock Full HD UEFI - ASRock Instant Flash * These utilities can be downloaded from ASRock Live Update & APP Shop. Hardware Monitor: - Temperature Sensing: CPU, CPU/Water Pump, Chassis/Water Pump Fans - Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans - Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump Fans - Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/Water Pump Fans - Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore OS: - Microsoft Windows 10 64-bit

Packaging

Package Contents	Accessories: - Quick Installation Guide, Support CD - 2 x SATA Data Cables - 1 x ASRock WiFi 2.4/5 GHz Antenna - 1 x Screw for M.2 Socket