B550M WIFI DDR4

Supports AMD AM4 Socket Ryzen™ 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors*

* Please refer to CPU support list for details.

AMD

AM4

AMD B550

Dual Channel DDR4 Memory Technology
4 x DDR4 DIMM Slots

- AMD Ryzen series CPUs (Vermeer) 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 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 (Cezanne) 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*

- 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*

- AMD Ryzen series APUs (Picasso) support DDR4 3333+(OC) / 3200(OC) / 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory*

Max. capacity of system memory : 128GB*
Supports Extreme Memory Profile (XMP) memory modules
15μ Gold Contact in DIMM Slots

*Please refer to below table for AMD non-XMP memory frequency support. For more details, please refer to the QVL on ASRock's website.

4733

Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU (Actual support may vary by CPU)

- 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 AMD CrossFire™

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

CPU:
- 1 x PCIe 4.0 x16 Slot (PCIE1), supports x16 mode*

Chipset:
- 1 x PCIe 3.0 x16 Slot (PCIE3), supports x4 mode*
- 1 x PCIe 3.0 x1 Slot (PCIE2)
- Supports AMD CrossFire™
- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module

* PCIE1 will run at Gen4x16 with Vermeer and Matisse, Gen3x16 with Cezanne and Renoir and Gen3x8 with Picasso.
Supports NVMe SSD as boot disks

PCIe 4.0

CPU:
1 x Hyper M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode*

Chipset:
4 x SATA3 6.0 Gb/s Connectors

* Supports NVMe SSD as boot disks
NVMe SSD is not supported with AMD Athlon™ 3000G Processors
M2_1 will run at Gen4x4 with Vermeer, Matisse and Gen3x4 with Cezanne, Renoir and Picasso.

RAID
Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices

NVMe

1

CPU:
6 x USB 3.2 Gen1 Type-A (4 Rear (USB3_12 and USB3_34), 2 Front (F_USB3_1_2)) Chipset:
2 x USB 3.2 Gen1 Type-A (2 Front (F_USB3_3_4)
6 x USB 2.0 (2 Rear, 4 Front)

* All USB ports support ESD Protection

1 x COM Port Header
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 (Smart Fan Speed Control)***
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)
2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)

* Supports in total up to 12V/3A, 36W LED Strip
** Support in total up to 5V/3A, 15W LED Strip
*** CHA_FAN1/WP, CHA_FAN2/WP and CHA_FAN4/WP can auto detect if 3-pin or 4-pin fan is in use.
CPU_FAN1 supports the fan power up to 1A (12W).
CHA_FAN1/WP, CHA_FAN2/WP and CHA_FAN4/WP support the water cooler fan of maximum 2A (24W) fan power.
CHA_FAN1/WP, CHA_FAN2/WP and CHA_FAN4/WP can auto detect if 3-pin or 4-pin fan is in use.

2 x Antenna Ports
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: Line in / Front Speaker / Microphone

PCIE x1 Gigabit LAN 10/100/1000 Mb/s
Realtek RTL8111H

802.11axe Wi-Fi 6E Module
Supports IEEE 802.11a/b/g/n/ac/ax/axe
Supports Dual-Band 2x2 with extended 6GHz band* support
2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology
Supports Bluetooth 5.2
Supports MU-MIMO

* Wi-Fi 6E (6GHz band) will be supported by Microsoft Windows® 11. The availability will depend on the different regulation status of each country and region. It will be activated (for supported countries) through Windows® Update and software updates once available.
A 6GHz compatible router is required for 6E functionality.

Micro ATX

N/A

256Mb AMI UEFI Legal BIOS with GUI support

Rock-Solid Durability
- 8 Power Phase

Ultrafast Connectivity
- 802.11axe Wi-Fi 6E Module

EZ Troubleshooter
- ASRock แสดงสถานะการตรวจสอบ

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.

Microsoft Windows® 10 64-bit / 11 64-bit

1 x I/O Shield
2 x SATA Data Cables
2 x ASRock WiFi 2.4/5/6 GHz Antennas