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Sapphire NITRO+ X870EA motherboard with Ryzen 9 9950X3D CPU combo, dark metallic finish, full thermal armor, ARGB lighting

Sapphire Tech

Sapphire Tech NITRO+ X870EA PhantomLink PE + Ryzen 9 9950X3D AMD motherboard

SKU CH-57X8-JTA23

AM5 combo pairs a 16+2+1 phase 90A VRM motherboard with a 170W 16-core CPU featuring 128MB L3 cache for high-end gaming

  • CPU Socket TypeAM5
  • ChipsetAMD X870E

CPU + R9 9950X3D

  • PhantomLink backplane removes GPU cables, improving airflow and build neatness
  • Ryzen 9 9950X3D with 128 MB L3 cache accelerates gaming and multitasking
  • 16+2+1 phase VRM rated at 90 A delivers steady power for full-load stability
  • PCIe 5.0, DDR5 up to 8400 MT/s, WiFi 7 and 5G Ethernet enable ultra-fast connectivity
  • Full-coverage thermal armor with ARGB provides efficient cooling and premium visual style

PhantomLink cable-free GPU design

The Sapphire NITRO+ X870EA PhantomLink PE motherboard pairs with the Ryzen 9 9950X3D processor in an AM5 platform combo. The PhantomLink backplane connector allows a graphics card to install without visible power cables, improving chassis airflow and giving a clean internal appearance for high-end builds.

PCIe 5.0 and DDR5 speed limits

The board delivers dual PCIe 5.0 M.2 slots and supports DDR5 memory overclocked to 8400 MT/s. Rear I/O includes two USB4 ports at 40 Gbps and a front USB-C header at 20 Gbps. Network connectivity uses Wi-Fi 7, Bluetooth 5 and 5G wired Ethernet for high-throughput data transfer.

16+2+1 phase 90 A VRM for 170 W CPU

A 16+2+1 phase power delivery rated at 90 amperes per phase supplies the Ryzen 9 9950X3D and its 170 watt TDP. The 128 MB L3 cache on the processor benefits from stable voltage during sustained loads. Full-coverage cooling armor with ARGB lighting manages heat across the VRM and chipset.

Highlights

  • PhantomLink backplane removes GPU cables, improving airflow and build neatness
  • Ryzen 9 9950X3D with 128 MB L3 cache accelerates gaming and multitasking
  • 16+2+1 phase VRM rated at 90 A delivers steady power for full-load stability
  • PCIe 5.0, DDR5 up to 8400 MT/s, WiFi 7 and 5G Ethernet enable ultra-fast connectivity
  • Full-coverage thermal armor with ARGB provides efficient cooling and premium visual style

Specifications

BrandSAPPHIRE
ModelNITRO+ X870EA PhantomLink PE+R9 9950X3D
CPU Socket TypeAM5
ChipsetAMD X870E

Other versions of this model

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Questions about this item

Should I choose the 16+2+1 (90A) VRM version or a lower-phase board for the Ryzen 9 9950X3D?

The 16+2+1 (90A) power delivery is engineered for full-load running and overclocking of the 170W Ryzen 9 9950X3D, providing steady power for long-term stability.

What does the 128MB L3 cache figure mean once the CPU is in a real machine?

The 128MB 3D V-Cache on the Ryzen 9 9950X3D drastically reduces memory latency in games and heavy multitasking, delivering dominant frame rates and responsiveness.

What does PCIe 5.0 cap in practice on this board?

PCIe 5.0 supports dual PCIe 5.0 M.2 SSDs at full speed and enables the PhantomLink backplane connector for cable-free GPU installation with maximum bandwidth.

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