X570-Phantom-Gaming-4-WiFi-ax motherboard
B550 Phantom Gaming-ITX/ax
  • Supports 3rd Gen AMD AM4 Ryzen / Future AMD Ryzen Processors
  • 8 Power Phase Design, Digi Power, 90A Dr.MOS
  • Supports DDR4 5400+ (OC)
  • 1 PCIe 4.0 x16
  • Graphics Output Options: HDMI, DisplayPort
  • 7.1 CH HD Audio (Realtek ALC1220 Audio Codec), Nahimic Audio
  • 4 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 Ultra M.2 (PCIe Gen3 x4 & SATA3)
  • 3 USB 3.2 Gen2 (Rear Type A+C, Front Type-C), 6 USB 3.2 Gen1 (2 Front, 4 Rear)
  • Intel 2.5G LAN, Wi-Fi 6 802.11ax (2.4Gbps) + BT 5.1
left side of the motherboardtop side of the motherboard
B550 Phantom Gaming 4 motherboard

Phantom Gaming is designed by gamers and for gamers! Underneath its relentless appearance lie plentiful gaming oriented features and excellent gaming capabilities. It's all about bringing a new gaming experience to gamers!

B550M Pro4 motherboard
TAKE THE LEAD

Game your way with speed and ease thanks to ultra-fast hardware
B550ReadyforRyzen
a woman is listening music
Nahimic Audio

Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.

a woman is listening music

The Sound Tracker is a visual indicator that points out the directions from which predominant sounds are coming. Each sound is properly positioned in 360° on a radar for a full immersion during the game.

DrMOS-B550 of the motherboard
90A Dr. MOS

Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, thus providing improved thermal result and superior performance.

Premium 90A Power Choke

Compared to traditional chokes, ASRock's premium 90A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

8 Power Phase Design of the motherboard
8 Power Phase Design

Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.

2ozCopperPCB-B550 of the motherboard
8LAYER & 2OZ COPPER PCB

The 8 Layer PCB comes with 4 sets of 2 ounce copper inner layers, providing stable signal traces and power shapes and delivering lower temperature and higher energy efficiency for overclocking! Thus, it's able to support the latest DDR4 memory modules with most extreme memory performance!

POLYRGBLED-B550M Pro4 Gaming 4 WiFi ax
RULE YOUR OWN LIGHTING WAY - POLYCHROME RGB

This motherboard features onboard RGB headers and an addressable RGB header that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.

Polychrome-RGB Phantom Gaming 4 WiFi ax*The addressable RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/GND), with a maximum power rating of 3A (5V), a max of 80 LEDs and length within 2 meters.
*The RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a maximum power rating of 3A (12V) and length within 2 meters.
B550 Taichi motherboard
Wi-Fi 6 802.11ax

Welcome to the new Wi-Fi standard! ASRock's motherboard equipped with next generation Intel Wi-Fi 6 802.11ax adapter. The speed will be working up to 2.4Gbps and it will also natively operate with both 2.4Ghz and 5Ghz simultaneously. Significant improvement in bi-directional MU-MIMO support is another attractive feature as well.

icon-2T2R-WiFi2.4+BT51
B550 Taichi motherboard
Intel 2.5G LAN

The 2.5G Ethernet configuration were introduced to support higher bandwidth on widely deployed CAT5e and CAT6 cabling in enterprise and metro area networks. The industry's leading Intel LAN always provides the best throughput performance, lower CPU utilization, enhanced stability and is able to deliver ultimate network experience to users!

Intel2.5GLAN-Speed chart
PCI-E 4.0 of the motherboard
Reinforced Steel Slot [PCIe 4.0 Version]

The reinforced steel slot comes with the next generation PCI Express 4.0 standard. The various benefits include:

  • Extra anchor points
  • Stronger latch
  • Ensure signal stability
  • Make sure heavy graphics cards to be well-installed.
DualM2-SSD-B550 Pro4 of the motherboard
A SOLID M.2-SOLUTION PERFORMER

Dual M.2 For SSD, Supports Type 22110 M.2
Ready for higher capacity and even faster Type 22110 M.2 NVMe SSD to fulfill the need of performance. Hyper M.2 socket that supports PCIe Gen4 x4 while Ultra M.2 socket is capable of running PCIe Gen3 x4 and SATA3 mode.

M.2 Armors
Good M.2 SSD protection is important for longevity and stability. ASRock provides a completed M.2 armor solution that makes SSDs to run in a certain low temperature.

USB 3.2 Gen1 Type-C of the motherboard
Front USB 3.2 Gen1 Type-C

Front USB 3.2 Gen1 Type-C header delivers up to 5 Gbps data transfer rate and next generation reversible USB design to the front panel of computer case.

2XUSB3.2Gen2 Phantom Gaming 4 WiFi ax
Dual USB 3.2 Gen2 (Type-A + Type-C)

This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen2 ports built on the rear i/o for supporting next generation USB 3.2 Gen2 devices and to deliver up to 10 Gbps data transfer rates.

chart of USB3.2 Gen2
Dual Graphics Outputs of the motherboard
Dual Graphics Outputs

Complete with two types of most used connectors! Packed with a HDMI + DisplayPort combo, you have more graphics output options now.

Integrated I/O of the motherboard
Post Status Checker

An easy troubleshooting tool that shows the CPU / DRAM / VGA / BOOT operation every time you start up the system. Post Status Checker is an fast and easy way to identify the source of the problem.

SA icon
XXL Aluminum Alloy Heatsink
B550 Phantom Gaming of the motherboard

Extra large aluminum alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable.

Dr. MOS

SA-DrMOS of the motherboard

Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Intelligently delivering higher current and driving up to 50A continuous current for each phase, thus providing improved thermal result and superior performance.

Premium 60A Power Choke
SA-60APowerChoke of the motherboard

Compared to traditional chokes, ASRock's premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

Matte Black PCB
SA-MattePCB of the motherboard

A new mysterious matte black and copper color scheme to match the prestigious components on ASRock's high-end motherboards.

High Density Glass Fabric PCB
SA-HDPCB of the motherboard

High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

2oz Copper PCB

SA-8PCB of the motherboard

Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.

FullSpike
Full Spike Protection

Some sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard's components from being damaged by these unexpected voltage spikes.

APPShop
Live Update & APP Shop

ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.

Learn more about ASRock B550 Phantom Gaming-ITX/ax

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 ModuleIEEE 802.11a/b/g/n/ax
Bluetooth
Bluetooth 5.1
Rear Panel Ports
Back I/O Ports
2 x Antenna Ports1 x HDMI Port1 x DisplayPort 1.41 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 SlotsVGA Card- 15µ Gold Contact in VGA PCIe Slot (PCIE1)Internet- Intel 2.5G LANAudio- Nahimic AudioUnique 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 PCBIntel 2.5G LANIntel 802.11ax WiFiASRock Steel Slot Gen4ASRock Full Coverage M.2 HeatsinkASRock Hyper M.2 (PCIe Gen4x4)ASRock Full Spike Protection (for all USB, Audio, LAN Ports)ASRock Live Update & APP ShopBIOS:- 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-adjustmentSoftware and UEFI:Software- ASRock Motherboard Utility (Phantom Gaming Tuning)- ASRock Polychrome SYNC- ASRock Key Master- ASRock XFast LANUEFI- 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 VcoreOS:- 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
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