B550M PRO-A WIFI6E 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

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

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)

- 1 x HDMI 2.1, supports HDR, HDCP 2.3, 4K Ultra HD (UHD) playback and max. resolution up to 4K 60Hz** Picasso supports HDCP 2.2 with HDMI 2.0 Port

Supports AMD CrossFire™

7.1 CH HD Audio (Realtek ALC897 Audio Codec)

AMD Ryzen series CPUs (Vermeer and Matisse)
- 2 x PCIe x16 Slots (PCIE1: Gen4x16 mode; PCIE4: Gen3 x4 mode)*

AMD Ryzen series APUs (Cezanne and Renoir)
- 2 x PCIe x16 Slots (PCIE1: Gen3x16 mode; PCIE4: Gen3 x4 mode)*

AMD Ryzen series APUs (Picasso)
- 2 x PCIe x16 Slots (PCIE1: Gen3x8 mode; PCIE4: Gen3 x4 mode)*

- 2 x PCIe 3.0 x1 Slots (PCIE2/PCIE3: x1 mode)
- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module

*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 (with Vermeer, Matisse) or Gen3x4 (32 Gb/s) mode (with Cezanne, Renoir and Picasso)

* Chipset:
- 1 x M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen3x2 (16 Gb/s) mode*
- 4 x SATA3 6.0 Gb/s Connectors

* Supports NVMe SSD as boot disks
* NVMe SSD is not supported with AMD Athlon™ 3000G Processors

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

NVMe

2

CPU:
- 1 x USB 3.2 Gen1 Type-C (Front)
- 6 x USB 3.2 Gen1 Type-A (4 Rear (USB32_12 and USB32_34), 2 Front (USB32_8_9))

Chipset:
- 1 x USB 3.2 Gen1 Type-C (Rear)
- 3 x USB 3.2 Gen1 Type-A (1 Rear (USB32_5), 2 Front (USB32_6_7))
- 6 x USB 2.0 (2 Rear, 4 Front)
* All USB ports support ESD Protection

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) (Smart Fan Speed Control)***
3 x Chassis 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)
1 x Front Panel Type C USB 3.2 Gen1 Header* Support in total up to 12V/3A, 36W LED Strip** Support in total up to 5V/3A, 15W LED Strip*** CPU_FAN1 supports the fan power up to 1A (12W).

**** CHA_FAN1~3 support the fan power up to 2A (24W).
**** CHA_FAN1~3 can auto detect if 3-pin or 4-pin fan is in use.

2 x USB 2.0 Ports
1 x USB 3.2 Gen1 Type-C Port
5 x USB 3.2 Gen1 Type-A Ports
1 x HDMI Port
1 x RJ-45 LAN Port
2 x Antenna Ports
1 x PS/2 Mouse/Keyboard Port
HD Audio Jacks: Line in / Front Speaker / Microphone

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

* 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.
- 2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology
- Supports Bluetooth 5.3
- Supports MU-MIMO

Micro ATX

N/A

128Mb AMI UEFI Legal BIOS with GUI support

Rock-Solid Durability
- 8 Power Phase

EZ Troubleshooter
ASRock POST Status Checker (PSC)

Ultrafast Connectivity
- 802.11axe Wi-Fi 6E Module

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