ASRock B550M Pro-A DDR4,AM4 Socket mATX Motherboard

Rock-Solid Durability
- 8 Power Phase
EZ Troubleshooter
ASRock POST Status Checker (PSC)

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

- 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*

- 128Mb AMI UEFI Legal BIOS with GUI support

Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU*
- 1 x HDMI 2.1, supports HDR, HDCP 2.3, 4K Ultra HD (UHD) playback and max. resolution up to 4K 60Hz**

- 7.1 CH HD Audio (Realtek ALC897 Audio Codec)

- Gigabit LAN 10/100/1000 Mb/s
- Realtek RTL8111H

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)
- Supports AMD CrossFire™
- 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

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

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)

- 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

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

Software
- ASRock Motherboard Utility (A-Tuning)
- ASRock Polychrome SYNC*
UEFI
- ASRock Full HD UEFI
- ASRock Instant Flash

- 1 x I/O Shield
- 2 x SATA Data Cables
- 1 x Screw for M.2 Socket

- Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm

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