B550-A PRO

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

AM4

AMD B550

4x DDR4 memory slots, support up to 128GB
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

1x HDMI port, supports a maximum resolution of 4096x2160 @24Hz*
1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz*
Maximum shared memory of 16GB
* Available for the processor with integrated graphics.

Supports 2-Way AMD CrossFire™ Technology

Realtek® ALC892 Codec
7.1-Channel High Definition Audio

1x PCIe 4.0/ 3.0 x16 slot (PCI_E1)*
1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed**
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.

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*
- 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.

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

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

1x Keyboard / Mouse
1x DisplayPort
1x LAN
6x HD Audio Connectors
1x Flash BIOS Button
4x USB 2.0
1x HDMI
2x USB 3.2 Gen 1 5Gbps Type-A
2x USB 3.2 Gen 2 10Gbps Type-A+C

1x Realtek® 8111H Gigabit LAN controller

ATX Form Factor
12 in. x 9.6 in. (30.5 cm x 24.4 cm)

3,348.90 cm3