MSI B550-A PRO

B550-A PRO

TECHNICAL SPECIFICATIONS

CPU

Supports AM4 socket 3rd Gen AMD Ryzen™ processors, and future AMD Ryzen™ processors with BIOS update.

Chipset

AMD B550 Chipset

Memory

- 4x DDR4 memory slots, support up to 128GB 1

- Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC

- Supports DDR4 2667/ 2800 /2933 /3000 /3066 /3200 /3466 /3600/

- 3733 /3866 /4000 /4133 /4266 /4400+ MHz by A-XMP OC MODE

- 1DPC 1R Max speed 4800 MHz

- 1DPC 2R max speed 3866 MHZ

- 2DPC 1R max speed 4000 MHZ

- 2DPC 2R max speed 3600 MHZ

- Dual channel memory architecture

- Supports non-ECC UDIMM memory

- Supports ECC UDIMM memory (non-ECC mode)

- Supports un-buffered memory

Please refer www.msi.com for more information on compatible memory.

Slots

- 1x PCIe 4.0/ 3.0 x16 slot (PCI_E1) 1

- 1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed 2

- 2x PCIe 3.0 x1 slots
The supported specification depends on installed processor.When installing PCIe SSD in M.2_2, PCI_E3 slot will be unavailable.

Multi-GPU

- Supports 2-Way AMD CrossFire™ Technology

Onboard Graphics

- 1x HDMI port, supports a maximum resolution of 4096x2160 @24Hz 1

- 1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz 1

- Maximum shared memory of 2048 MB
Available for the processor with integrated graphics.

Storage

AMD B550 Chipset

- 6x SATA 6Gb/s ports

- 2x M.2 slots (Key M)

- M2_1 slot (from AMD Processor)

- Supports PCIe 4.0/ 3.0 x4 1

- Supports SATA 6Gb/s

- Supports 2242/ 2260/ 2280/ 22110 storage devices

- M2_2 slot (from AMD B550 chipset)

- Supports PCIe 3.0x4

- Supports 2242/ 2260/ 2280 storage devices

- The supported specification depends on installed processor.

RAID

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

- Supports RAID 0 and RAID 1 for M.2 NVMe storage devices

USB

AMD B550 Chipset

- 3x USB 3.2 Gen 1 5Gbps ports (1 Type-C internal connector, and 2 ports are available through the internal USB 3.2 Gen 1 5Gbps connector)

- 8x USB 2.0 ports (4 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors)

AMD Processor

- 2x USB 3.2 Gen 2 10Gbps ports (1 Type-C port and 1 Type-A port on the back panel)

- 2x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel

Audio

- Realtek ALC892 Codec
7.1-Channel High Definition Audio

LAN

- 1x Realtek 8111H Gigabit LAN controller

Internal Connectors

- 1x 24-pin ATX main power connector

- 1x 8-pin ATX 12V power connector

- 6x SATA 6Gb/s connectors

- 2x M.2 slots (M-Key)

- 1x USB 3.2 Gen 1 5Gbps Type-C port

- 1x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports)

- 2x USB 2.0 connectors (supports additional 4 USB 2.0 ports)

- 1x 4-pin CPU fan connector

- 1x 4-pin water-pump fan connector

- 6x 4-pin system fan connectors

- 1x Front panel audio connector

- 2x System panel connectors

- 1x Chassis Intrusion connector

- 1x 4-pin RGB LED connector

- 2x 3-pin RAINBOW LED connectors

- 1xTPM module connector

- 1x Clear CMOS jumper

Back Panel Ports

- Keyboard / Mouse

- DisplayPort

- LAN

- HD Audio Connectors

- Flash BIOS Button

- USB 2.0

- HDMI

- USB 2.0

- USB 3.2 Gen 1 5Gbps Type-A

- USB 3.2 Gen 2 10Gbps Type-A+C

Mounting

- 9 mounting holes

Dimensions

- ATX Form Factor

- 12 in. x 9.6 in. (30.5 cm x 24.4 cm)