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Rectangular ATX motherboard, black PCB with silver heatsinks and rear I/O shield

ASUS

ASUS PRIME B850-PLUS AMD motherboard AM5 DDR5

SKU CH-ZF85-KR5MP

An ATX board with 12+2 phase power for Ryzen 9000/8000/7000 CPUs, AEMP DDR5 tuning, one PCIe 5.0 and two PCIe 4.0 M.2 slots, 2.5Gb Ethernet, pre-mounted I/O shield and Aura Sync RGB

  • Stable CPU power from a 12+2 phase Digi+ VRM design for Ryzen 9000/8000/7000
  • Faster DDR5 speeds and tighter timings via AEMP on non-EXPO kits
  • One PCIe 5.0 x4 M.2 slot up to 128 Gbps plus two PCIe 4.0 x4 slots
  • Reliable 2.5 Gb Ethernet with LANGuard for low-latency networking
  • Easier builds with pre-mounted I/O shield, Fan Xpert 2+ cooling, and Aura Sync RGB headers

ASUS PRIME B850-PLUS AM5 DDR5 Motherboard

This ASUS motherboard uses the AMD B850 chipset and AM5 socket to support Ryzen 7000, 8000 and 9000 series processors. It delivers a 12+2 phase power design with Digi+ VRM for stable current delivery. The board is built for DDR5 memory and includes ASUS Enhanced Memory Profile to optimise speeds and timings.

Suited for DDR5 builders who want PCIe 5.0 M.2

This board fits enthusiasts who need one PCIe 5.0 x4 M.2 slot running up to 128 Gbps and two PCIe 4.0 x4 M.2 slots. It adds Realtek 2.5Gb Ethernet with LANGuard, rear USB 10Gbps Type-A and Type-C, plus DisplayPort output. Builders who need integrated Wi-Fi or more than three M.2 sockets should look elsewhere.

PCIe 5.0 M.2 slot with up to 128 Gbps bandwidth

The single PCIe 5.0 x4 M.2 slot provides the highest storage throughput on this platform, reaching 128 Gbps. This specification decides whether the board matches a workload that demands that peak sequential speed. The two additional PCIe 4.0 x4 slots handle secondary drives at lower bandwidth.

Highlights

  • Stable CPU power from a 12+2 phase Digi+ VRM design for Ryzen 9000/8000/7000
  • Faster DDR5 speeds and tighter timings via AEMP on non-EXPO kits
  • One PCIe 5.0 x4 M.2 slot up to 128 Gbps plus two PCIe 4.0 x4 slots
  • Reliable 2.5 Gb Ethernet with LANGuard for low-latency networking
  • Easier builds with pre-mounted I/O shield, Fan Xpert 2+ cooling, and Aura Sync RGB headers

Specifications

No published specifications for this item yet.

Questions about this item

How much bandwidth does the PCIe 5.0 x4 M.2 slot provide?

The PCIe 5.0 x4 M.2 slot delivers up to 128 Gbps for the fastest storage devices.

What network speed does the onboard Ethernet controller support?

The board includes a Realtek 2.5Gb Ethernet controller with ASUS LANGuard for reliable wired networking.

Which CPU socket is required for the 12+2 phase power design?

The power design supports AMD Ryzen 9000, 8000 and 7000 series processors in the AM5 socket.

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