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Prime B840M-R
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen 9000 series processors. The PRIME B840M-R motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.
| Processor | |
| Processor manufacturer: | AMD |
| Processor socket: | Socket AM5 |
| Compatible processor series: | AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series |
| Memory | |
| Supported memory types: | DDR5-SDRAM |
| Number of memory slots: | 2 |
| Maximum internal memory: | 128 GB |
| Memory slots type: | DIMM |
| Memory channels: | Dual-channel |
| ECC ompatibility: | Non-ECC |
| Supported memory clock speed (max): | 7600 MHz |
| Unbuffered memory: | Yes |
| Storage controllers | |
| Supported storage drive interfaces: | M.2, SATA III |
| Supported storage drive types: | HDD & SSD |
| Number of HDDs supported: | 4 |
| Number of storage drives supported: | 6 |
| RAID support: | Yes |
| RAID levels: | 0, 1, 5, 10 |
| Graphics | |
| Parallel processing technology support: | Not supported |
| Internal I/O | |
| USB 2.0 connectors: | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors: | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) connectors: | 0 |
| Number of SATA III connectors: | 4 |
| S/PDIF out connector: | Yes |
| Front panel audio connector: | Yes |
| ATX Power connector (24-pin): | Yes |
| CPU fan connector: | Yes |
| Number of CPU fan connectors: | 1 |
| Number of chassis fan connectors: | 2 |
| EPS power connector (8-pin): | Yes |
| Number of COM connectors: | 1 |
| TPM connector: | Yes |
| 12V power connector: | Yes |
| Rear panel I/O ports | |
| USB 2.0 ports quantity: | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity: | 4 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity: | 0 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity: | 0 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity: | 0 |
| Ethernet LAN (RJ-45) ports: | 1 |
| VGA (D-Sub) ports quantity: | 0 |
| HDMI ports quantity: | 1 |
| DVI-D ports quantity: | 0 |
| PS/2 ports quantity: | 1 |
| DisplayPorts quantity: | 1 |
| Headphone outputs: | 1 |
| Line-in: | Yes |
| Microphone in: | Yes |
| USB connector type: | USB Type-A |
| Network | |
| Wi-Fi: | No |
| Ethernet LAN: | Yes |
| Ethernet interface type: | Gigabit Ethernet |
| Features | |
| Component for: | PC |
| Motherboard form factor: | micro ATX |
| Motherboard chipset family: | AMD |
| Motherboard chipset: | AMD B840 |
| Audio output channels: | 7.1 channels |
| Product colour: | Multicolour |
| Windows operating systems supported: | Windows 11, Windows 10 x64 |
| Expansion slots | |
| PCI Express x1 (Gen 3.x) slots: | 1 |
| Number of M.2 (M) slots: | 2 |
| 1st M.2 largest key size: | 2280 |
| BIOS | |
| BIOS type: | UEFI AMI |
| BIOS memory size: | 256 Mbit |
| Packaging data | |
| Package width: | 260 mm |
| Package depth: | 270 mm |
| Package height: | 51.5 mm |
| Package weight: | 924 g |
| Weight & dimensions | |
| Width: | 236 mm |
| Depth: | 229 mm |
| Height: | 36.5 mm |
| Other features | |
| Weight: | 563 g |
Product Safety Information
Responsible Person in the EU:
ASUS HOLLAND B.V Marconistraat 2 7825 GD GD Nieuw-Dordrech Netherlands https://qr.asus.com/ProductSafety
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