| Processor manufacturer | AMD |
| Processor socket | Socket AM4 |
| Compatible processor series | AMD Ryzen™ 3, AMD Ryzen™ 5, AMD Ryzen™ 7, 3rd Generation AMD Ryzen™ 9 |
| Maximum number of SMP processors | 1 |
| Supported memory types | DDR4-SDRAM |
| Number of memory slots | 4 |
| Maximum internal memory | 128 GB |
| Memory slots type | DIMM |
| Memory channels | Dual-channel |
| ECC | Y |
| Supported memory clock speeds | 2133,2400,2666,2800,3000,3200,3300,3400,3466,3600,3733,3866,4000,4400 MHz |
| Unbuffered memory | Y |
| Supported storage drive interfaces | SATA III |
| Supported storage drive types | HDD & SSD |
| Parallel processing technology support | Not supported |
| 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 | Y |
| Audio connector | Y |
| Front panel audio connector | Y |
| Front panel connector | Y |
| ATX Power connector (24-pin) | Y |
| CPU fan connector | Y |
| Number of chassis fan connectors | 2 |
| Number of COM connectors | 1 |
| TPM connector | Y |
| 12V power connector | Y |
| RGB LED pin header | Y |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| 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 | 2.0b |
| Wi-Fi | N |
| Ethernet LAN | Y |
| Ethernet interface type | Gigabit Ethernet |
| LAN controller | Realtek RTL8111H |
| Wake-on-LAN ready | Y |
| Component for | PC |
| Motherboard form factor | micro ATX |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B450 |
| Audio output channels | 7.1+2 channels |
| Windows operating systems supported | Windows 10 x64, Windows 7 x64 |
| PCI Express x1 (Gen 2.x) slots | 2 |
| PCI Express x16 (Gen 3.x) slots | 1 |
| Number of M.2 (M) slots | 1 |
| BIOS type | UEFI AMI |
| BIOS memory size | 256 Mbit |
| Clear CMOS jumper | Y |
| Harmonized System (HS) code | 84733020 |
| Width | 244 mm |
| Depth | 240 mm |
| Height | 259 mm |
| Cables included | SATA |
| Drivers included | Y |
| Weight | 849 g |
| Description |
| ASUS PRIME B450M-A II. Processor manufacturer: AMD, Processor socket: Socket AM4, Compatible processor series: AMD Ryzen™ 3, AMD Ryzen™ 5, AMD Ryzen™ 7, 3rd Generation AMD Ryzen™ 9. Supported memory types: DDR4-SDRAM, Maximum internal memory: 128 GB, Memory slots type: DIMM. Supported storage drive interfaces: SATA III, Supported storage drive types: HDD & SSD. HDMI version: 2.0b. Ethernet interface type: Gigabit Ethernet, LAN controller: Realtek RTL8111H |
