Overview

ASRock B550 Phantom Gaming 4 AMD B550 mATX Motherboard for Ryzen 5000 Series
Build a high-performance gaming and productivity system with the ASRock B550 Phantom Gaming 4. Designed for AMD Ryzen desktop processors, this micro ATX motherboard combines PCIe 4.0 support, high-speed DDR4 memory compatibility, versatile connectivity, and reliable power delivery in a compact form factor. Whether you are assembling a competitive gaming PC, a content creation workstation, or a future-ready everyday system, it delivers the performance and flexibility modern users demand.

Description

The ASRock B550 Phantom Gaming 4 is built to unlock the potential of AMD Ryzen processors while offering excellent upgradeability for years to come. Featuring support for PCIe 4.0 graphics cards and NVMe SSDs, dual M.2 storage options, high-speed DDR4 memory up to 128GB, and comprehensive connectivity including HDMI, DisplayPort, Gigabit LAN, and multiple USB ports, this motherboard provides a solid foundation for gamers, creators, and PC enthusiasts seeking exceptional value and dependable performance.

Features

Built for AMD Ryzen Performance
Powered by the AMD B550 chipset, this motherboard supports a wide range of AMD AM4 processors, including Ryzen 3000 Series, 3000 G-Series, 4000 G-Series, 5000 Series, and 5000 G-Series CPUs. Its robust 8 Power Phase Digi Power design helps ensure stable power delivery under demanding workloads and gaming sessions.

The balanced architecture makes it an ideal choice for users who want premium capabilities without moving into higher-priced enthusiast platforms.

Fast Memory Support for Modern Computing
High-speed memory compatibility enables responsive multitasking and enhanced gaming performance. With four DDR4 DIMM slots supporting up to 128GB of system memory, users can configure their systems to match anything from everyday productivity to intensive creative workloads.

Key memory highlights include:

• Dual-channel DDR4 architecture
• 4 x DDR4 DIMM slots
• Maximum memory capacity of 128GB
• DDR4 speeds up to 4733+ MHz overclocked, depending on processor compatibility
• Support for Extreme Memory Profile (XMP) modules
• ECC and non-ECC support on selected Ryzen platforms

Graphics Connectivity for Flexible Display Setups
Integrated display outputs offer versatile monitor connectivity when paired with compatible Ryzen APUs. Independent display controllers allow smooth operation across multiple screens for gaming, streaming, and productivity.

Display capabilities include:

• 1 x HDMI 2.1 output supporting up to 4K at 60Hz
• 1 x DisplayPort 1.4 supporting resolutions up to 5K at 120Hz
• HDR support via HDMI
• HDCP compatibility
• 4K Ultra HD playback support

Expansion Designed for Future Upgrades
The ASRock B550 Phantom Gaming 4 provides the flexibility enthusiasts expect from a modern gaming motherboard. PCIe 4.0 support allows next-generation graphics cards and storage devices to operate at their full potential.

Expansion options include:

• 1 x PCIe 4.0 x16 slot
• 1 x PCIe 3.0 x16 slot
• 1 x PCIe 3.0 x1 slot
• AMD CrossFireX support
• NVMe boot support

This upgrade-friendly approach helps extend the lifespan of your system as newer hardware becomes available.

High-Speed Storage Solutions
Fast storage access contributes significantly to overall system responsiveness. Dual M.2 slots and multiple SATA connections offer the ideal combination of speed and capacity.

Storage support includes:

• 1 x Hyper M.2 supporting PCIe Gen4 x4 NVMe SSDs
• 1 x M.2 supporting PCIe Gen3 x2 and SATA devices
• 4 x SATA3 6Gb/s ports
• RAID 0, RAID 1 and RAID 10 support
• AHCI, NCQ and Hot Plug functionality

Reliable Networking and Immersive Audio
Whether gaming online or collaborating remotely, dependable connectivity matters.

Networking and sound capabilities include:

• Realtek RTL8111H Gigabit LAN
• Wake-On-LAN support
• PXE support
• Energy Efficient Ethernet
• Lightning and ESD protection
• 7.1-channel HD Audio powered by Realtek ALC887/ALC897
• Dedicated Line-In, Front Speaker and Microphone jacks
• Audio surge protection

Comprehensive Connectivity
A generous selection of rear and internal connectors ensures compatibility with a wide variety of peripherals and accessories.

Rear panel connections:

• 1 x PS/2 Mouse/Keyboard port
• 1 x HDMI port
• 1 x DisplayPort 1.4
• 4 x USB 3.2 Gen1 ports
• 2 x USB 2.0 ports
• 1 x RJ-45 LAN port
• HD Audio jacks

Internal connectivity:

• 2 x USB 3.2 Gen1 headers supporting 4 front USB ports
• 2 x USB 2.0 headers supporting 4 front USB ports
• 2 x RGB LED headers
• 2 x Addressable RGB headers
• 1 x SPI TPM header
• Multiple fan and water pump connectors with Smart Fan control

Compact Design with Premium Construction
Its micro ATX layout offers an excellent balance between expandability and space efficiency, fitting comfortably into a broad selection of PC cases.

Construction highlights:

• Form factor: 24.4 cm x 24.4 cm
• Solid capacitor design
• 2oz Copper PCB construction
• GUI-based UEFI BIOS
• Windows 10 64-bit and Windows 11 64-bit support

The B550M PHANTOM GAMING 4 delivers a dependable platform for gamers and PC builders looking for performance, expandability, and long-term versatility in a compact motherboard.

What's Included

• ASRock B550 Phantom Gaming 4 AM4 mATX Motherboard
• 2 x SATA Data Cables
• 1 x I/O Shield

Why Choose ASRock
ASRock has built a reputation for delivering reliable, innovative motherboards that cater to both enthusiasts and everyday users. The ASRock B550 Phantom Gaming 4 continues that tradition by combining practical connectivity, modern expansion options, and proven AMD platform performance into one value-driven package.

For users seeking a versatile AMD motherboard with PCIe 4.0 support, fast storage capabilities, and broad Ryzen compatibility, the ASRock B550 Phantom Gaming 4 with Part Number B550M PHANTOM GAMING 4 remains an excellent choice.

Specifications

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Specifications
Product Code	B550M PHANTOM GAMING 4
Unique Feature	ASRock Super Alloy
	- Premium 50A Power Choke
	- Sapphire Black PCB
	- High Density Glass Fabric PCB
	- 2oz Copper PCB
	ASRock Hyper M.2 (PCIe Gen4x4)
	ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
	ASRock Live Update & APP Shop
CPU	- Supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors
	- Digi Power design
	- 8 Power Phase design
Chipset	- AMD B550
Memory	- Dual Channel DDR4 Memory Technology
	- 4 x DDR4 DIMM Slots
	- Max. capacity of system memory: 128GB
	- Supports Extreme Memory Profile (XMP) memory modules
	- 15μ Gold Contact in DIMM Slots
	*For Ryzen Series APUs (Picasso, Cezanne and Renoir), ECC is only supported with PRO CPUs.
	SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
	DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
	**Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.
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, +1.8VSB, Voltage Multi-adjustment
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.
	***Picasso supports HDCP 2.2 with HDMI 2.0 Port
Audio	- 7.1 CH HD Audio (Realtek ALC887/897 Audio Codec)
	- Supports Surge Protection
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
Slots	AMD Ryzen series CPUs (Vermeer and Matisse)
	- 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode , PCIE3: Gen3 x4 mode)
	AMD Ryzen series APUs (Cezanne and Renoir)
	- 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode , PCIE3: Gen3 x4 mode)
	AMD Ryzen series APUs (Picasso)
	- 2 x PCI Express x16 Slots (PCIE1: Gen3x8 mode , PCIE3: Gen3 x4 mode)
	- 1 x PCI Express 3.0 x1 Slot
	- Supports AMD Quad CrossFireX and CrossFireX
	*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 Vermeer, Matisse) or Gen3x4 (32 Gb/s) (with Cezanne, Renoir and Picasso)
	- 1 x M.2 Socket (M2_2), supports M Key type 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)
	*Supports NVMe SSD as boot disks
	NVMe SSD is not supported with AMD Athlon 3000G Processors
Connector	- 1 x SPI TPM Header
	- 1 x Power LED and Speaker Header
	- 2 x RGB LED Headers
	- 2 x Addressable LED Headers
	- 1 x CPU Fan Connector (4-pin)
	- 3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)
	- 1 x 24 pin ATX Power Connector
	- 1 x 8 pin 12V Power Connector
	- 1 x Front Panel Audio Connector
	- 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
	- 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) (Supports ESD Protection)
	*Support in total up to 12V/3A, 36W LED Strip
	**Support in total up to 5V/3A, 15W LED Strip
	***The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
	****The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
	CHA_FAN1/WP, CHA_FAN2/WP and CHA_FAN3/WP can auto detect if 3-pin or 4-pin fan is in use.
Rear Panel I/O	- 1 x PS/2 Mouse/Keyboard Port
	- 1 x HDMI Port
	- 1 x DisplayPort 1.4
	- 4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
	- 2 x USB 2.0 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
Software and UEFI	Software
	- ASRock Motherboard Utility (A-Tuning)
	- ASRock Polychrome SYNC
	UEFI
	- ASRock Full HD UEFI
	- ASRock Instant Flash
	*These utilities can be downloaded from ASRock Live Update & APP Shop.
Accessories	- I/O Shield
	- 2 x SATA Data Cables
	- 2 x Screws for M.2 Sockets
Hardware Monitor	- Temperature Sensing: CPU, Chassis/Water Pump Fans
	- Fan Tachometer: CPU, Chassis/Water Pump Fans
	- Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis/Water Pump Fans
	- Fan Multi-Speed Control: CPU, Chassis/Water Pump Fans
	- Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, VPPM, +1.8V
Form Factor	- Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm
	- Solid Capacitor design
	- 2oz Copper PCB
OS	- Microsoft Windows 10 64-bit / 11 64-bit
Certifications	- FCC, CE
	- ErP/EuP ready (ErP/EuP ready power supply is required)