| Processor manufacturer | AMD |
| Processor socket | Socket AM4 |
| Compatible processor series | AMD Athlon, AMD Ryzen™ 3, 2nd Generation AMD Ryzen™ 3, 3rd Generation AMD Ryzen™ 3, AMD Ryzen™ 5, 2nd Generation AMD Ryzen™ 5, 3rd Generation AMD Ryzen 5, AMD Ryzen™ 7, 2nd Generation AMD Ryzen™ 7, 3rd Generation AMD Ryzen™ 7, 3rd Generation AMD Ryzen™ 9 |
| Supported processor sockets | Socket AM4 |
| Supported memory types | DDR4-SDRAM |
| Number of memory slots | 4 |
| Maximum internal memory | 64 GB |
| Memory slots type | DIMM |
| Memory channels | Dual-channel |
| ECC | Yes |
| Non-ECC | Yes |
| Supported memory clock speeds | 1866,2133,2400,2667,2800,2933,3000,3066,3200,3466,3733,3866,4000,4133 MHz |
| Supported storage drive interfaces | PCI Express, PCI Express 2.0, PCI Express 3.0, SATA III, USB 2.0, USB 3.2 Gen 1 (3.1 Gen 1), USB 3.2 Gen 2 (3.1 Gen 2) |
| Number of HDDs supported | 6 |
| RAID levels | 0, 1, 10 |
| Parallel processing technology support | CrossFireX |
| Maximum graphics card memory | 2048 MB |
| USB 2.0 connectors | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| Number of SATA III connectors | 6 |
| S/PDIF out connector | Yes |
| Audio connector | Yes |
| Front panel audio connector | Yes |
| Front panel connector | Yes |
| ATX Power connector (24-pin) | Yes |
| Number of EATX power connectors | 2 |
| Power fan connector | Yes |
| CPU fan connector | Yes |
| Number of chassis fan connectors | 4 |
| Chassis intrusion connector | Yes |
| Peripheral (Molex) power connectors (4-pin) | 4 |
| EPS power connector (8-pin) | Yes |
| TPM connector | Yes |
| Parallel connector | Yes |
| Serial port headers | 1 |
| 12V power connector | Yes |
| RGB LED pin header | Yes |
| USB 2.0 ports quantity | 6 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 1 |
| VGA (D-Sub) ports quantity | 1 |
| HDMI ports quantity | 1 |
| DVI-D ports quantity | 1 |
| PS/2 ports quantity | 1 |
| HDMI version | 1.4 |
| Headphone outputs | 1 |
| Microphone in | Yes |
| Digital audio optical out | 4 |
| Parallel ports quantity | 1 |
| Serial ports quantity | 1 |
| USB connector type | USB Type-A |
| Wi-Fi | No |
| Ethernet LAN | Yes |
| Ethernet interface type | Gigabit Ethernet |
| LAN controller | Realtek 8111H |
| Component for | PC |
| Motherboard form factor | ATX |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B450 |
| Audio output channels | 5.1 channels |
| Cooling type | Active |
| Number of mounting holes | 9 |
| Windows operating systems supported | Windows 10 x64, Windows 7 x64 |
| PCI Express x1 (Gen 2.x) slots | 4 |
| PCI Express x16 (Gen 2.x) slots | 1 |
| PCI Express x16 (Gen 3.x) slots | 1 |
| Number of M.2 (M) slots | 1 |
| Harmonized System (HS) code | 84733020 |
| Width | 305 mm |
| Depth | 244 mm |
| Cables included | AC, SATA |
| Drivers included | Yes |
| Description |
| MSI B450-A PRO MAX. Processor manufacturer: AMD, Processor socket: Socket AM4, Compatible processor series: AMD Athlon, AMD Ryzen™ 3, 2nd Generation AMD Ryzen™ 3, 3rd Generation AMD Ryzen™ 3, AMD.... Supported memory types: DDR4-SDRAM, Maximum internal memory: 64 GB, Memory slots type: DIMM. Supported storage drive interfaces: PCI Express, PCI Express 2.0, PCI Express 3.0, SATA III, USB 2.0, USB 3.2 Gen 1 (3.1 Gen 1), USB..., RAID levels: 0, 1, 10. Parallel processing technology support: CrossFireX, Maximum graphics card memory: 2048 MB. USB connector type: USB Type-A |
