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ATX motherboard with large heatsinks and rear CPU socket visible

Sapphire Tech

Sapphire Tech NITRO+ X870EA PhantomLink AMD motherboard + Ryzen 9 9900X3D CPU

SKU CH-RWE0-HZ79W

AM5 motherboard with 16+2+1 90A power delivery, WiFi 7, PhantomLink back-connect, dual USB4 40G and four M.2 slots paired with a 12-core 24-thread Ryzen 9 9900X3D CPU featuring 144MB 3D V-Cache

  • CPU Socket TypeAM5
  • ChipsetAMD X870E

CPU + R9 9900X3D

  • 12-core Ryzen 9 9900X3D with 144MB 3D V-Cache drives ultra-high frame rates
  • 16+2+1 90A power delivery and full-coverage heatsinks eliminate thermal throttling under sustained load
  • PhantomLink back-connect interface enables reverse-mounted graphics cards for cleaner airflow and easier builds
  • WiFi 7, 5G LAN, dual PCIe 5.0 M.2 and dual USB4 40G ports deliver near-zero latency and fast transfers
  • AM5 platform supports Ryzen 7000, 8000, 9000 series with DDR5 8400+ MT/s overclocking for long-term upgrades

Flagship AM5 motherboard and Ryzen 9 9900X3D combo

This bundle pairs a Sapphire NITRO+ X870EA PhantomLink motherboard with an AMD Ryzen 9 9900X3D processor. The CPU delivers 12 cores and 24 threads built on Zen 5 architecture. A 144 MB 3D V-Cache is designed to raise frame rates in 2K, 4K and 8K gaming. The platform targets enthusiasts who also run heavy multi-thread workloads such as 3D rendering or 8K video editing.

16+2+1 90A power delivery

The board uses a 16+2+1 phase design rated at 90 A per phase with full-coverage heatsinks to sustain the 120 W CPU under prolonged load. PhantomLink provides a patented reverse-mount graphics card interface that reduces cable clutter and improves chassis airflow. Rear I/O includes dual USB4 40 Gbps ports and a front USB-C 20 Gbps header. Connectivity covers Wi-Fi 7, Bluetooth 5 and 5 Gbps wired Ethernet. Four M.2 slots support two PCIe 5.0 drives.

DDR5 8400 MT/s ceiling and AM5 upgrade path

Memory overclocking is validated to 8400 MT/s on the X870E chipset, setting the practical frequency limit for this kit. The AM5 socket supports Ryzen 7000, 8000 and 9000 series processors, giving a defined upgrade path within the same platform. Onboard display and quick-control buttons aid troubleshooting without extra peripherals. The CPU integrates AMD Radeon graphics for basic display output when a discrete card is not installed.

Highlights

  • 12-core Ryzen 9 9900X3D with 144MB 3D V-Cache drives ultra-high frame rates
  • 16+2+1 90A power delivery and full-coverage heatsinks eliminate thermal throttling under sustained load
  • PhantomLink back-connect interface enables reverse-mounted graphics cards for cleaner airflow and easier builds
  • WiFi 7, 5G LAN, dual PCIe 5.0 M.2 and dual USB4 40G ports deliver near-zero latency and fast transfers
  • AM5 platform supports Ryzen 7000, 8000, 9000 series with DDR5 8400+ MT/s overclocking for long-term upgrades

Specifications

BrandSAPPHIRE
ModelNITRO+ X870EA PhantomLink+(R9 9900X3D)
CPU Socket TypeAM5
ChipsetAMD X870E

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the CPU fit my existing AM5 cooler?

The Ryzen 9 9900X3D uses the standard AM5 socket, so any cooler rated for AM5 will mount correctly.

Does the board support DDR5 speeds above 8400 MT/s?

The manufacturer highlights 8400+ MT/s overclocking capability for high-frequency DDR5 memory.

Can I install two PCIe 5.0 SSDs without losing graphics bandwidth?

The board provides dual PCIe 5.0 M.2 slots alongside the primary graphics slot for simultaneous high-speed storage.

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