Product Name: MSI B550-A Pro ATX AM4 DDR4 Motherboard
■ Supports AMD Ryzen™ 5000 & 3000 Series desktop processors (not compatible with AMD Ryzen™ 5 3400G & Ryzen™ 3 3200G) and AMD Ryzen™ 4000 G-Series desktop processors
■ Supports DDR4 Memory, up to 4400(OC) MHz
■ Lightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 Gen 2
■ Premium Thermal Solution: Extended Heatsink Design with additional choke thermal pad and 7W/mK pad, and M.2 Shield Frozr are built for high performance system and non-stop works
■ Powerful Design: Core Boost, Digital PWM IC, 2oz Thickened Copper PCB, Creator Genie, DDR4 Boost
■ Audio Boost: Reward your ears with studio grade sound quality
■ Multi-GPU: With Steel armor PCI-E slots. Supports 2-Way AMD Crossfire™
■ Dragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface.
Specification
CPU
✎ Supports AMD Ryzen™ 5000 & 3000 Series desktop processors (not compatible with AMD Ryzen™ 5 3400G & Ryzen™ 3 3200G) and AMD Ryzen™ 4000 G-Series desktop processors
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
EXPANSION SLOT
✎ 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 2.1 port, supports a maximum resolution of 4096x2160 @60Hz 1 2
Support HDCP 1.4 & 2.3
✎ 1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz 1
✎ Maximum shared memory of 16 GB
*Available for the processor with integrated graphics.Graphics specifications may vary depending on the CPU installed.
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/ALC897 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
DIMENSIONS
✎ ATX Form Factor / 12 in. x 9.6 in. (30.5 cm x 24.4 cm)
MOUNTING
✎ 9 mounting holes
✅Reminders:
1. Take a video of yourself while unboxing the parcel. This would serve as proof if you have concerns with the parcel.
2. Ask the delivery rider to present a valid ID (e.g., driver’s license, UMID) and/or take a picture of the delivery rider with your payment.