ASRock B550 PHANTOM GAMING 4/AC MB B550 With WiFi ATX: AM4 Socket For 3rd Gen AMD Ryzen Processors Hyper M.2, Gigabit LAN, Wi-Fi 802.11ac (2.4/5GHz) + BT 4.2, 4x DDR4, 4x SATA 6Gbps, 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 2 PCIe 3.0 x1, USB 3.2, HDMI With WiFi

– 15� Gold Contact in DIMM Slots

Cooling

– XXL Aluminum Alloy Heatsink

Audio

– Nahimic Audio

– XXL Aluminum Alloy Heatsink

– Premium 50A Power Choke

– Sapphire Black PCB

– High Density Glass Fabric PCB

– 2oz Copper PCB

Intel 802.11ac WiFi

ASRock Steel Slot Gen4

ASRock Hyper M.2 (PCIe Gen4x4)

ASRock POST Status Checker (PSC)

ASRock Full Spike Protection (for all USB, Audio, LAN Ports)

ASRock Live Update & APP Shop

Digi Power design

8 Power Phase design

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

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 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

15� Gold Contact in DIMM Slots

*For Ryzen Series CPUs (Picasso), ECC is only supported with PRO CPUs.

Ryzen Series CPUs (Matisse):

Ryzen Series APUs:

SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label x=1 or 2

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.

Supports “Plug and Play”

ACPI 5.1 compliance wake up events

Supports jumperfree

SMBIOS 2.3 support

CPU, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, 2.5V_PROM, +1.8VSB, VDDP Voltage Multi-adjustment

DirectX 12, Pixel Shader 5.0

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

Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096×2160) @ 60Hz

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 Port

Supports 4K Ultra HD (UHD) playback with HDMI 2.1 Port

Supports Microsoft PlayReady

*Actual support may vary by CPU

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

Premium Blu-ray Audio support

Supports Surge Protection

PCB Isolate Shielding

Individual PCB Layers for R/L Audio Channel

Nahimic Audio

– Realtek RTL8111H

– Supports Wake-On-LAN

– Supports Lightning/ESD Protection

– Supports Energy Efficient Ethernet 802.3az

– Supports PXE

– 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode)*

AMD Ryzen series APUs

– 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode)*

– 2 x PCI Express 3.0 x1 Slots

– Supports AMD Quad CrossFireX and CrossFireX

– 1 x M.2 Socket (Key E) with the bundled WiFi-802.11ac module

*Supports NVMe SSD as boot disks

– 1 x Hyper M.2 Socket (M2_1), supports M Key type 2260/2280/22110 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)*

*Supports NVMe SSD as boot disks

Supports ASRock U.2 Kit

– 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)***

– 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)

– 4 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 4 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)

– 1 x USB 3.2 Gen1 Header (Supports 2 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.

CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP and CHA_FAN4/WP can auto detect if 3-pin or 4-pin fan is in use.

– 1 x PS/2 Mouse/Keyboard Port

– 1 x HDMI Port

– 6 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

– 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.

– 2 x SATA Data Cables

– 2 x ASRock WiFi 2.4/5 GHz Antennas

– 1 x Screw for M.2 Socket

– 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, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, +1.8V, VDDP

– Solid Capacitor design

– 2oz Copper PCB

– ErP/EuP ready (ErP/EuP ready power supply is required)