ASRock B550 Phantom Gaming-ITX/ax

CPU

Supports 3rd Gen AMD AM4 Ryzen™ / future AMD Ryzen™ Processors

Digi Power design

8 Power Phase design

Not compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3 3200G.



Chipset

AMD B550



Memory

Dual Channel DDR4 Memory Technology

2 x DDR4 DIMM Slots

AMD Ryzen series CPUs (Matisse) support 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 ECC & non-ECC, un-buffered memory

AMD Next Generation Ryzen series APUs support 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 ECC & non-ECC, un-buffered memory

Max. capacity of system memory: 64GB

Supports Extreme Memory Profile (XMP) memory modules

15µ Gold Contact in DIMM Slots

For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs.

Please refer to below table for AMD non-XMP memory frequency support.



Graphics

Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU

DirectX 12, Pixel Shader 5.0

Shared memory default 2GB. Max Shared memory supports up to 16GB.

Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers

Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz

Supports DisplayPort 1.4 with max. resolution up to 5K (5120x2880)@120Hz

Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required)

Supports HDR (High Dynamic Range) with HDMI 2.1

Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 Ports

Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports

Supports Microsoft® PlayReady

Actual support may vary by CPU

The Max shared memory 16GB requires 32GB system memory installed.



Audio

7.1 CH HD Audio with Content Protection (Realtek ALC1220 Audio Codec)

Premium Blu-ray Audio support

Supports Surge Protection

120dB SNR DAC with Differential Amplifier

Pure Power-In

Direct Drive Technology

PCB Isolate Shielding

Impedance Sensing on Rear Out port

Individual PCB Layers for R/L Audio Channel

15µ Gold Audio Connector

Nahimic Audio



LAN

2.5 Gigabit LAN 10/100/1000/2500 Mb/s

GigaLAN Intel® I225V

Supports Wake-On-LAN

Supports Lightning/ESD Protection

Supports Energy Efficient Ethernet 802.3az

Supports PXE

Wireless LAN

Intel® 802.11ax WiFi Module

Supports IEEE 802.11a/b/g/n/ax

Supports Dual-Band (2.4/5 GHz)

Supports WiFi6 802.11ax (2.4Gbps)

2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology

Supports Bluetooth 5.1 + High speed class II

Supports MU-MIMO



Slots

AMD Ryzen series CPUs (Matisse)

1 x PCI Express x16 Slot (PCIE1: Gen4x16 mode)

AMD Ryzen series APUs

1 x PCI Express x16 Slot (PCIE1: Gen3x16 mode)

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)

Supports NVMe SSD as boot disks



Storage

4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug

1 x Hyper M.2 Socket (M2_1), supports M Key type 2280 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)

1 x Ultra M.2 Socket, supports M Key type 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)*

Supports NVMe SSD as boot disks

Supports ASRock U.2 Kit (M2_1)



Connector

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 24 pin ATX Power Connector (Hi-Density Power Connector)

1 x 8 pin 12V Power Connector (Hi-Density Power Connector)

1 x Front Panel Audio Connector (15µ Gold Audio Connector)

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)

Supports in total up to 12V/3A, 36W LED Strip



Rear Panel I/O

2 x Antenna Ports

1 x HDMI Port

1 x DisplayPort 1.4

1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection)

1 x USB 3.2 Gen2 Type-C Port (10 Gb/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



Form Factor

Mini-ITX Form Factor: 6.7-in x 6.7-in, 17.0 cm x 17.0 cm

8 Layer PCB

2oz Copper PCB



OS

Microsoft® Windows® 10 64-bit