Motherboard - micro ATX - Socket AM4 - AMD B550 Chipset - USB 3.2 Gen 1 - Gigabit LAN - onboard graphics (CPU required) - HD Audio (8-channel)
| Main Specifications | |
|---|---|
| Product Description | MSI B550M-A PRO - motherboard - micro ATX - Socket AM4 - AMD B550 |
| Product Type | Motherboard - micro ATX |
| Chipset Type | AMD B550 |
| Processor Socket | 1 x Socket AM4 |
| Compatible Processors | Ryzen (supports Ryzen 5000 & 3000 series (not compatible with Ryzen 5 3400G & Ryzen 3 3200G) and Ryzen 4000 G-series) |
| Max RAM Size | 64 GB |
| RAM Supported | 2 DIMM slots - DDR4, non-ECC, ECC (operate in non-ECC mode), unbuffered |
| Storage Ports | 4 x SATA-600 (RAID), 1 x M.2 |
| USB / FireWire Ports | 4 x USB 3.2 Gen 1 + 2 x USB 2.0 + (2 x USB 3.2 Gen 1 + 4 x USB 2.0 via headers) |
| Max Allocated RAM Size | 16 GB |
| Audio | HD Audio (8-channel) |
| LAN | Gigabit Ethernet |
| General | |
| Product Type | Motherboard - micro ATX |
| Chipset Type | AMD B550 |
| Processor Socket | Socket AM4 |
| Max Processors Qty | 1 |
| Compatible Processors | Ryzen (supports Ryzen 5000 & 3000 series (not compatible with Ryzen 5 3400G & Ryzen 3 3200G) and Ryzen 4000 G-series) |
| Expansion / Connectivity | |
| Expansion Slots | 1 x CPU ¦ 2 x DIMM 288-pin ¦ 1 x PCIe 4.0 x16 ¦ 1 x PCIe 3.0 x1 |
| Storage Interfaces | SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 ¦ SATA-600 / PCIe 4.0 -connectors: 1 x M.2 |
| Interfaces | 1 x LAN (Gigabit Ethernet) ¦ 1 x audio line-in - mini-jack ¦ 1 x audio line-out - mini-jack ¦ 1 x microphone - mini-jack ¦ 4 x USB 3.2 Gen 1 ¦ 1 x PS/2 keyboard ¦ 2 x USB 2.0 ¦ 1 x HDMI ¦ 1 x DVI-D ¦ 1 x PS/2 mouse |
| Internal Interfaces | 4 x USB 2.0 - header ¦ 2 x USB 3.2 Gen 1 - header ¦ 1 x audio - header |
| Power Connectors | 4-pin ATX12V connector, 24-pin main power connector |
| Miscellaneous | |
| Included Accessories | Case badge, I/O back cover |
| Cables Included | 2 x Serial ATA cable |
| Software Included | Drivers & utilities |
| Width | 9.3 in |
| Depth | 7.9 in |
| Audio | |
| Type | HD Audio (8-channel) |
| Audio Codec | Realtek ALC892/ALC897 |
| Compliant Standards | High Definition Audio |
| Features | |
| BIOS Features | MSI ClickBIOS 5 |
| Hardware Features | MSI Audio Boost, Debug LED, Double ESD Protection, 2oz Copper PCB, MSI Core Boost, MSI PCIe Steel Slot |
| LAN | |
| Network Controller | Realtek RTL8111H |
| Network Interfaces | Gigabit Ethernet |
| Graphics | |
| Max Allocated RAM Size | 16 GB |
| Supported RAM | |
| Max Size | 64 GB |
| Technology | DDR4 |
| Bus Clock | 2400 MHz, 1866 MHz, 2133 MHz, 2800 MHz, 3000 MHz, 2667 MHz, 2933 MHz, 3466 MHz (O.C.), 3733 MHz (O.C.), 3600 MHz (O.C.), 3866 MHz (O.C.), 4000 MHz (O.C.), 4133 MHz (O.C.), 4400 MHz (O.C.), 4266 MHz (O.C.), 4600 MHz (O.C.), 3200 MHz, 3066 MHz |
| Supported RAM Integrity Check | Non-ECC, ECC (operate in non-ECC mode) |
| Registered or Buffered | Unbuffered |
| Features | Dual channel memory architecture, supported ECC modules operate in non-ECC mode, A-XMP support |