ASRock B550M Phantom Gaming 4 AMD AM4 Motherboard

The ASRock B550M Phantom Gaming 4 delivers reliable performance in a compact Micro-ATX form factor. Built for AMD Ryzen 3000, 4000 G-Series, and 5000 Series processors, this motherboard combines essential gaming features with practical connectivity options.

Power Delivery and Performance

The 8 Power Phase design with Premium 50A Power Chokes provides stable power delivery to your AMD Ryzen processor. The 2oz copper PCB ensures consistent signal traces and efficient heat dissipation, supporting DDR4 memory up to 4733+ MHz when overclocked. Four DDR4 DIMM slots accommodate up to 128GB of system memory with XMP profile support.

Storage and Expansion

Dual M.2 sockets provide flexible storage options: the Hyper M.2 socket supports PCIe Gen4 x4 speeds (64 Gb/s with Matisse CPUs), while the secondary M.2 socket handles PCIe Gen3 x2 and SATA3 modules. Four SATA3 ports with RAID support (0, 1, 10) complement the M.2 storage capacity. The motherboard features one PCIe 4.0 x16 slot, one PCIe 3.0 x16 slot (x4 mode), and one PCIe 3.0 x1 slot, with AMD CrossFireX support for multi-GPU configurations.

Connectivity and Display Options

Integrated graphics from Ryzen APUs output through HDMI 2.1 (4K@60Hz) and DisplayPort 1.4 (5K@120Hz) ports, both supporting HDR and HDCP 2.3. The Realtek RTL8111H Gigabit Ethernet controller provides stable network connectivity with Wake-On-LAN support. USB connectivity includes eight USB 3.2 Gen1 ports and six USB 2.0 ports distributed across front headers and rear I/O, all with ESD protection.

Audio and RGB Lighting

Realtek ALC887/897 codec delivers 7.1 channel HD audio through rear panel jacks. Polychrome RGB headers (two standard RGB and two addressable) allow synchronization of compatible LED devices including strips, fans, and coolers.

Smart Features

AMD Smart Access Memory removes GPU memory bottlenecks for enhanced gaming performance. ASRock Full Spike Protection safeguards all USB, audio, and LAN ports. The 256Mb AMI UEFI BIOS includes ASRock Instant Flash for easy updates, while A-Tuning software enables system monitoring and fan control for CPU and chassis fans.

Specifications

Supports AMD AM4 Socket Ryzen 3000, 4000 G-Series and 5000 Series Desktop Processors
8 Power Phase design
Supports DDR4 4733+ (OC)
1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16, 1 x PCIe 3.0 x1
Supports AMD CrossFireX
Graphics Output Options: HDMI, DisplayPort
7.1 CH HD Audio (Realtek ALC887/897 Audio Codec)
4 x SATA3, 1 x Hyper M.2(PCIe Gen4 x4), 1 x M.2(PCIe Gen3 x2 & SATA3)
8 x USB 3.2 Gen1 (4 Front, 4 Rear)
6 x USB 2.0 (4 Front, 2 Rear)
Realtek Gigabit LAN

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!

8 Power Phase Design
Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers enhanced performance with the lowest temperature for advanced gamers.

Premium 50A Power Choke
Compared to traditional chokes, ASRock's premium 50A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

AMD SMART ACCESS MEMORY
Conventional PC systems processor can only access a fraction of graphics memory and limits system performance. With AMD Smart Access Memory, the data channel gets expanded to harness the full potential of GPU memory, removes the bottleneck and increase performance.

A SOLID M.2-SOLUTION PERFORMER
Dual M.2 For SSD, Supports Type 2280 M.2
Ready for higher capacity and even faster Type 2280 M.2 NVMe SSD to fulfill the need of performance. Hyper M.2 socket that supports PCIe Gen4 x4 while M.2 socket is capable of running PCIe Gen3 x2 and SATA3 mode.

2oz Copper PCB
2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it's able to support the latest DDR4 memory modules with most extreme memory performance!

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.

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

HDMI 4k @60Hz
Supports the most recent HDMI 4K 60Hz graphics output specification. With the larger bandwidth and increased frame rate, the motion on your screen becomes more fluid and less blurry.

Specifications

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, 4000 G-Series and 5000 Series Desktop 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
4 x DDR4 DIMM Slots
AMD Ryzen series CPUs (Matisse) support DDR4 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 Ryzen series APUs (Renoir) support DDR4 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: 128GB
Supports Extreme Memory Profile (XMP) memory modules
15µ Gold Contact in DIMM Slots

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

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 (Matisse)
- 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode)
AMD Ryzen series APUs (Renoir)
2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode)
1 x PCI Express 3.0 x1 Slot
Supports AMD Quad CrossFireX and CrossFireX

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) (with Renoir)
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)

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)

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

Support CD
Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar

Accessories
Quick Installation Guide, Support CD, 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

• Socket: AM4
• CPU Compatibility: AMD Ryzen
• Chipset: AMD B550
• Form Factor: Micro ATX
• Memory Slots: DDR4 - 4 Slots
• M.2 Compatibility: NVMe / SATA
• USB C: No