| General |
| Brand |
ASUS (PRIME series) |
| Model |
PRIME B840-PLUS WIFI |
| Part Number |
90MB1IZ0-M0EAY0 |
| Form Factor |
ATX, 12in x 9.6in (30.5cm x 24.4cm) |
| CPU and Chipset |
| Socket |
AMD Socket AM5 |
| Supported CPUs |
AMD Ryzen 9000, 8000 and 7000 Series desktop processors |
| Chipset |
AMD B840 |
| Power Design |
8+2+1 phase digital |
| Memory |
| Type / Slots |
DDR5, 4 x DIMM |
| Maximum Capacity |
256GB |
| Speed |
Up to 7600+ MT/s (OC) |
| Profiles |
EXPO and AEMP; ECC / non-ECC unbuffered |
| Expansion and Storage |
| PCIe x16 (CPU) |
1 x PCIe 4.0 x16 (Ryzen 9000/7000); x8/x4 mode with Ryzen 8000 |
| PCIe (Chipset) |
1 x PCIe 3.0 x16 (x4), 2 x PCIe 3.0 x16 (x1), 1 x PCIe 3.0 x1 |
| M.2 |
3 slots: M.2_1 and M.2_2 PCIe 4.0 x4, M.2_3 PCIe 3.0 x4 |
| SATA |
4 x SATA 6Gb/s |
| Video, Audio and Network |
| Video Outputs |
1 x DisplayPort (8K@30Hz), 1 x HDMI (4K@60Hz) |
| Ethernet |
1 x Realtek 2.5Gb with LANGuard |
| Wireless |
Wi-Fi 6E 2x2 (2.4/5/6GHz), Bluetooth 5.3 |
| Audio |
Realtek 7.1 Surround Sound HD Audio CODEC, 24-bit/192kHz playback |
| USB |
| Rear |
2 x USB 10Gbps (1 Type-A + 1 Type-C), 2 x USB 5Gbps, 4 x USB 2.0 |
| Front |
1 x USB 5Gbps connector, 1 header for 2 x USB 5Gbps, 2 headers for 4 x USB 2.0 |
| Internal Connectors and BIOS |
| Fan Headers |
3 x CPU fan, 4 x chassis fan |
| Power |
24-pin main, 8-pin/4-pin CPU |
| Other |
Thunderbolt header, TPM header |
| BIOS |
256Mb flash ROM, UEFI AMI BIOS, CrashFree 3, EZ Flash 3 |
| Software |
Armoury Crate (Aura Sync, Fan Xpert 2+), ASUS Driver Hub, TurboV Core, CPU-Z |
