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Rectangular micro-ATX board, dark PCB with black slots and silver heatsinks

Sapphire Tech

Sapphire Tech B450M E AMD motherboard

SKU CH-ZZSD-S0M20

Micro-ATX AM4 board with PCIe 3.0 x16, M.2 3.0, HDMI and four SATA ports

  • CPU Socket TypeAM4
  • CPU TypeRyzen 5000 Series
  • ChipsetB450M E
  • Serial ATA (SATA)4 x SATA
  • HDMI1 x HDMI
  • 4+2+1 intelligent power supply delivers stable CPU voltage
  • PCIe 3.0 x16 expansion slot supports high-performance graphics cards
  • High-speed M.2 3.0 slot provides up to 32GB/s transfer speed
  • Rear panel offers 6 USB ports with 4 high-speed connections
  • Front panel header expandable to 4 USB ports with 2 high-speed connections

Socket AM4 platform board

The Sapphire B450M E is a micro-ATX motherboard built around the AMD B450 chipset and the AM4 socket. It accepts Ryzen 3000, 4000 and 5000 series processors for mainstream desktop builds.

PCIe 3.0 and M.2 3.0 limits

The board provides one PCIe 3.0 x16 slot for a graphics card and one M.2 3.0 slot rated at 32 GB/s for fast storage. Four SATA ports handle additional drives, while a single HDMI output covers integrated graphics video.

4+2+1 power phase layout

A 4+2+1 intelligent power supply design feeds the CPU and memory rails. The rear I/O supplies six USB ports, four of them high-speed, and front-panel headers can add four more USB ports, two high-speed, for everyday peripheral connectivity.

Highlights

  • 4+2+1 intelligent power supply delivers stable CPU voltage
  • PCIe 3.0 x16 expansion slot supports high-performance graphics cards
  • High-speed M.2 3.0 slot provides up to 32GB/s transfer speed
  • Rear panel offers 6 USB ports with 4 high-speed connections
  • Front panel header expandable to 4 USB ports with 2 high-speed connections

Specifications

BrandSAPPHIRE
ModelSapphire B450M E
CPU Socket TypeAM4
CPU TypeRyzen 5000 Series
ChipsetB450M E
Serial ATA (SATA)4 x SATA
HDMI1 x HDMI

Questions about this item

Which version of the Sapphire B450M E should I choose for a Ryzen 5000 series CPU?

The board uses the AM4 socket and the B450 chipset, which is designed for Ryzen 3000, 4000 and 5000 series processors, so this single version covers those CPUs.

What does the 32 GB/s M.2 3.0 slot mean once the board is built into a system?

That figure is the theoretical peak bandwidth of the PCIe 3.0 x4 link to the M.2 slot; actual drive speeds will be lower and depend on the specific SSD installed.

What interface standard does the PCIe 3.0 x16 slot use and what does it cap in practice?

The slot runs at PCIe 3.0 x16, limiting graphics cards to Gen 3 bandwidth even if the GPU supports Gen 4 or Gen 5.

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