AMD B840, AM5, 4 x DIMM slots, max. 192GB, DDR5, Realtek 2.5Gb Ethernet, 2x2 Wi-Fi 6E (802.11ax), Bluetooth 5.3, 256 Mb Flash ROM, UEFI AMI BIOS, ATX
Description
PRIME B840-PLUS WIFI-CSMASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B840-PLUS WIFI-CSM 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.
Specifications
| Internal I/O |
|---|
| Number of M.2 (M) slots |
3 |
| Thunderbolt headers |
1 |
| USB 3.2 Gen 2 (3.1 Gen 2) connectors |
0 |
| 12V power connector |
Yes |
| Supported storage drive interfaces |
M.2, SATA III |
| USB 2.0 connectors |
2 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors |
2 |
| TPM connector |
Yes |
| S/PDIF out connector |
Yes |
| Peripheral (Molex) power connectors (4-pin) |
1 |
| Number of SATA III connectors |
4 |
| Number of COM connectors |
1 |
| Number of chassis fan connectors |
4 |
| Front panel audio connector |
Yes |
| EPS power connector (8-pin) |
Yes |
| CPU fan connector |
Yes |
| Chassis intrusion connector |
Yes |
| ATX Power connector (24-pin) |
Yes |
| Number of CPU fan connectors |
1 |
| Performance |
|---|
| Number of HDDs supported |
4 |
| Supported storage drive types |
HDD & SSD |
| Component for |
PC |
| Motherboard chipset family |
AMD |
| Motherboard chipset |
AMD B840 |
| Motherboard form factor |
ATX |
| Audio output channels |
7.1 channels |
| RAID levels |
0, 1, 5, 10 |
| Windows operating systems supported |
Windows 10 x64, Windows 11 |
| Processor |
|---|
| Processor manufacturer |
AMD |
| Compatible processor series |
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Processor socket |
Socket AM5 |
| Memory |
|---|
| Number of memory slots |
4 |
| Supported memory types |
DDR5-SDRAM |
| Memory slots type |
DIMM |
| Memory channels |
Dual-channel |
| Maximum internal memory |
192 GB |
| Unbuffered memory |
Yes |
| Supported memory clock speed (max) |
7600 MHz |
| ECC сompatibility |
ECC & Non-ECC |
| Storage controllers |
|---|
| Number of HDDs supported |
4 |
| Supported storage drive types |
HDD & SSD |
| Supported storage drive interfaces |
M.2, SATA III |
| RAID levels |
0, 1, 5, 10 |
| Number of storage drives supported |
7 |
| RAID support |
Yes |
| Graphics |
|---|
| Parallel processing technology support |
Not supported |
| Rear panel I/O ports |
|---|
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity |
2 |
| 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 |
1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity |
1 |
| USB 2.0 ports quantity |
4 |
| Ethernet LAN (RJ-45) ports |
1 |
| WiFi-AP antenna jack |
2 |
| VGA (D-Sub) ports quantity |
0 |
| Microphone in |
Yes |
| HDMI ports quantity |
1 |
| DVI-D ports quantity |
0 |
| DisplayPorts quantity |
1 |
| Network |
|---|
| Ethernet LAN |
Yes |
| Wi-Fi |
Yes |
| Ethernet interface type |
2.5 Gigabit Ethernet |
| Bluetooth |
Yes |
| Bluetooth version |
5.3 |
| Top Wi-Fi standard |
Wi-Fi 6E (802.11ax) |
| Features |
|---|
| Component for |
PC |
| Motherboard chipset family |
AMD |
| Motherboard chipset |
AMD B840 |
| Motherboard form factor |
ATX |
| Audio output channels |
7.1 channels |
| Windows operating systems supported |
Windows 10 x64, Windows 11 |
| Product colour |
Multicolour |
| Expansion slots |
|---|
| Number of M.2 (M) slots |
3 |
| PCI Express x1 (Gen 3.x) slots |
1 |
| PCI Express x16 (Gen 3.x) slots |
3 |
| BIOS |
|---|
| BIOS type |
UEFI AMI |
| BIOS memory size |
256 Mbit |
| Weight & dimensions |
|---|
| Width |
305 mm |
| Depth |
244 mm |
