ASUS PRIME B850-PLUS WIFI AMD motherboard
- Ryzen 7000 Series /…
- AMD B850
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A motherboard and CPU combo with AM5 socket, DDR5 up to 8400 MT/s, PCIe 5.0 x16, M.2 Gen5, Wi-Fi 7, 5G LAN, and an 8-core 16-thread Ryzen 7 9700X processor
This bundle pairs a MAG B850 TOMAHAWK MAX WIFI board with a Ryzen 7 9700X processor. The CPU delivers 8 cores and 16 threads on Zen 5 architecture with a 5.5 GHz max boost and 40 MB cache. The board supports Ryzen 7000, 8000 and 9000 series chips on the AM5 socket. It targets gamers and creators who want a ready-matched platform.
EZ PCIe Release lets you unlock the graphics-card slot with one press. EZ M.2 Shield Frozr II removes the need for tools when fitting M.2 drives in 22110, 2280 or 2260 sizes. Wi-Fi 7 adds a 320 MHz channel for up to 5.8 Gbps throughput. The 5 Gbps LAN and Audio Boost 5 with Realtek ALC4080 complete the I/O set.
The AM5 socket and tool-less M.2 shields keep assembly simple. Four DDR5 slots accept up to 256 GB at 8400 MT/s OC with Ryzen 9000 series. PCIe 5.0 x16 comes from the CPU. Note that using the chipset M.2 slot at Gen 4 x2 forces the third PCIe slot to x2 speed unless you disable that M.2 slot in BIOS.
Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.
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| Product | |
|---|---|
| Brand name | MSI |
| Model name | MAG B850 TOMAHAWK MAX WIFI+R7 9700X |
| Processor | |
| CPU socket | AM5 |
| Chipset | AMD B850 |
| Memory | |
| Memory slot count | 4 × 288pin (DDR5) |
| Supported memory | Up to DDR5 8400+ MT/s (OC) |
| Max supported RAM | 256 GB |
| Memory channels | Dual Channel |
| ECC support | Non-ECC |
| Storage | |
| SATA ports | 4 x SATA 6Gb/s |
| SATA and RAID support | Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices |
| Audio & video | |
| Audio chip | Realtek ALC4080 |
| Sound channels | 7.1 Channels |
| Connectivity | |
| Ethernet controller | Realtek 8126VB |
| Maximum network speed | 5 Gbit/s |
| Wi-Fi standard | Wi-Fi 802.11 be |
| Bluetooth support | 5.4 |
| Ports & slots | |
| PCIe 5.0 x16 slots | PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU) |
| PCIe x1 slots | PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset) |
| Onboard USB headers | 4 x USB 2.0 ports 4 x USB 5 Gbit/s Type A ports 1 x USB 20 Gbit/s Type C ports |
| Power | |
| Power connectors | 1 x Power Connector(ATX_PWR) 2 x Power Connector(CPU_PWR) 1 x Power Connector(PCIE_PWR 8pin) |
| Size & build | |
| Form factor | ATX |
| Width and length | 12.0 in × 9.6 in |
| Compatibility | |
| Windows 11 support | 64-bit |
| More details | |
| Lighting | 4 x EZ Debug LED 1 x EZ Memory Detection LED |
The VRM is a solid-state power delivery component with no moving parts, so it does not need scheduled maintenance or periodic replacement.
The CPU will hit its own thermal ceiling before the motherboard VRM or chipset become the limiting factor under sustained load.
The LAN and Wi-Fi controllers are low-power chips that add minimal heat; system noise and temperature will be dictated by the CPU cooler and case airflow.
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