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ASUS
ASUS PRIME B840M-A WIFI-CSM motherboard AMD B840 Socket AM5 micro ATX
ASUS PRIME B840M-A WIFI-CSM motherboard AMD B840 Socket AM5 micro ATX
Regular price
$189.72 USD
Regular price
Sale price
$189.72 USD
Shipping calculated at checkout.
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ASUS PRIME B840M-A WIFI-CSM motherboard AMD B840 Socket AM5 micro ATX
| Processor manufacturer | AMD |
| Processor socket | Socket AM5 |
| Compatible processor series | AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Supported processor sockets | Socket AM5 |
| Supported memory types | DDR5-SDRAM |
| Number of memory slots | 4 |
| Memory slots type | DIMM |
| Memory channels | Dual-channel |
| ECC сompatibility | ECC & Non-ECC |
| Supported memory clock speed (max) | 7600 MHz |
| Maximum internal memory | 192 GB |
| Unbuffered memory | Yes |
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | M.2, SATA III |
| Number of HDDs supported | 4 |
| Number of storage drives supported | 7 |
| RAID support | Yes |
| RAID levels | 0, 1, 5, 10 |
Shipping & Returns
Shipping & Returns
In-stock items ship within 1–2 business days. Free shipping on orders over $500. 30-day return policy — see our returns page for details.
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Specifications
Specifications
General
| Processor manufacturer | AMD |
|---|---|
| Processor socket | Socket AM5 |
| Compatible processor series | AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Supported processor sockets | Socket AM5 |
General
| Supported memory types | DDR5-SDRAM |
|---|---|
| Number of memory slots | 4 |
| Memory slots type | DIMM |
| Memory channels | Dual-channel |
| ECC сompatibility | ECC & Non-ECC |
| Supported memory clock speed (max) | 7600 MHz |
| Maximum internal memory | 192 GB |
| Unbuffered memory | Yes |
General
| Supported storage drive types | HDD & SSD |
|---|---|
| Supported storage drive interfaces | M.2, SATA III |
| Number of HDDs supported | 4 |
| Number of storage drives supported | 7 |
| RAID support | Yes |
| RAID levels | 0, 1, 5, 10 |
General
| Parallel processing technology support | Not supported |
|---|---|
| On-board graphics card | No |
| Maximum resolution | 7680 x 4320 pixels |
General
| USB 2.0 connectors | 2 |
|---|---|
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
| Number of SATA III connectors | 4 |
| S/PDIF out connector | Yes |
| Front panel audio connector | Yes |
| Front panel connector | Yes |
| ATX Power connector (24-pin) | Yes |
| CPU fan connector | Yes |
| Number of CPU fan connectors | 2 |
| Number of chassis fan connectors | 3 |
| EPS power connector (8-pin) | Yes |
| Number of EPS power connectors (8-pin) | 1 |
| Number of COM connectors | 1 |
| TPM connector | Yes |
| Number of water pump connectors | 1 |
| RGB LED pin header | Yes |
| Number of RGB LED pin headers | 3 |
General
| USB 2.0 ports quantity | 4 |
|---|---|
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 1 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 2 |
| DisplayPort version | 1.4 |
| Headphone outputs | 1 |
| Line-in | Yes |
| WiFi-AP antenna jack | 2 |
General
| Ethernet LAN | Yes |
|---|---|
| Ethernet interface type | 2.5 Gigabit Ethernet |
| Wi-Fi | Yes |
| Top Wi-Fi standard | Wi-Fi 6E (802.11ax) |
| Wi-Fi standards | Wi-Fi 6E (802.11ax) |
| Bluetooth | Yes |
| Bluetooth version | 5.3 |
General
| Motherboard chipset | AMD B840 |
|---|---|
| Audio output channels | 7.1 channels |
| Product colour | Black |
| Component for | PC |
| Motherboard form factor | micro ATX |
| Motherboard chipset family | AMD |
| Power source type | ATX |
| Windows operating systems supported | Windows 10 x64, Windows 11 |
General
| PCI Express x16 (Gen 3.x) slots | 2 |
|---|---|
| PCI Express x16 (Gen 4.x) slots | 1 |
| Number of M.2 (M) slots | 3 |
| 1st M.2 largest key size | 2280 |
| 1st M.2 highest PCI Express generation | 4.0 |
| 2nd M.2 largest key size | 2280 |
| 2nd M.2 highest PCI Express generation | 4.0 |
| 3rd M.2 largest key size | 2280 |
| 3rd M.2 highest PCI Express generation | 3.0 |
General
| BIOS type | UEFI AMI |
|---|---|
| BIOS memory size | 256 Mbit |
General
| Width | 244 mm |
|---|---|
| Depth | 244 mm |
General
| Cables included | SATA |
|---|---|
| Antenna included | Yes |
| Screws included | Yes |
General
| Quick installation guide | Yes |
|---|
