B550 ROCK 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

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

N/A

7.1 CH HD Audio (Realtek ALC897 Audio Codec)

AMD Ryzen series CPUs (Vermeer and Matisse)
- 2 x PCIe x16 Slots (PCIE1: Gen4x16 mode; PCIE2: Gen3 x2 mode)*

AMD Ryzen series APUs (Cezanne and Renoir)
- 2 x PCIe x16 Slots (PCIE1: Gen3x16 mode; PCIE2: Gen3 x2 mode)*

AMD Ryzen series APUs (Picasso)
- 2 x PCIe x16 Slots (PCIE1: Gen3x8 mode; PCIE2: Gen3 x2 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 Ultra M.2 Socket (M2_2, Key M), supports type 2280 SATA3 6.0 Gb/s & PCIe Gen3x4 (32 Gb/s) modes*
1 x M.2 Socket (M2_3, 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, SATA

3

CPU:
1 x USB 3.2 Gen1 Type-C (Rear)
3 x USB 3.2 Gen1 Type-A (3 Rear (USB32_12 and USB32_3))

Chipset:
1 x USB 3.2 Gen1 Type-C (Front)
3 x USB 3.2 Gen1 Type-A (1 Rear (USB32_4), 2 Front)
7 x USB 2.0 (3 Rear, 4 Front)

*All USB ports support ESD Protection

1 x SPI TPM Header
1 x Power LED and Speaker Header
1 x RGB LED Header*
3 x Addressable LED Headers**
2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)***
4 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)***
1 x 24 pin ATX Power Connector
1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
1 x Front Panel Audio Connector
2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
1 x USB 3.2 Gen1 Header (Support 2 USB 3.2 Gen1 ports)
1 x Front Panel Type C USB 3.2 Gen1 Header

*Supports 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).
CPU_FAN2 and CHA_FAN1~4 support the fan power up to 3A (36W).
CPU_FAN2 and CHA_FAN1~4 can auto detect if 3-pin or 4-pin fan is in use.

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

2.5 Gigabit LAN 10/100/1000/2500 Mb/s
Dragon RTL8125BG

Supports Dragon 2.5G LAN Software
- Smart Auto Adjust Bandwidth Control
- Visual User Friendly UI
- Visual Network Usage Statistics
- Optimized Default Setting for Game, Browser, and Streaming Modes
- User Customized Priority Control

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 5.3
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.

ATX

N/A

256Mb AMI UEFI Legal BIOS with GUI support

Rock-Solid Durability
- 8+2 Power Phase
- Pre-Installed I/O Shield

Ultrafast Connectivity
- 2.5G LAN, 802.11axe Wi-Fi 6E Module

EZ Troubleshooter
- ASRock Post Status Checker

Software
ASRock Motherboard Utility (A-Tuning)
ASRock Dragon 2.5G LAN Software
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

2 x ASRock WiFi 2.4/5/6 GHz Antennas
2 x SATA Data Cables