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Adamant Custom

Adamant Custom Ryzen 9 9900X3D RTX 5090 32GB 4TB Gaming PC

SKU CH-MET5-7NG89

A liquid-cooled workstation desktop with a 12-core Ryzen 9 9900X3D, RTX 5090 graphics, 32GB DDR5 and a 4TB NVMe SSD running Windows 11 Pro

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity32 GB DDR5
  • SSD storage4 TB NVMe
  • GraphicsGeForce RTX 5090
  • CPU modelAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D delivers 24 threads for heavy workloads
  • 240 mm liquid cooler keeps the CPU quiet under load
  • RTX 5090 with 32 GB VRAM drives 4K gaming and AI tasks
  • 4 TB Samsung 990 PRO NVMe reads up to 7450 MB/s
  • 1200 W 80 PLUS Gold PSU powers every component with headroom

Ready-to-run workstation

This new mid-tower desktop ships with Windows 11 Pro installed and a 12-core AMD Ryzen 9 9900X3D processor cooled by a 240 mm liquid loop. A GeForce RTX 5090 with 32 GB of video memory handles heavy rendering and AI workloads, while 32 GB of DDR5 RAM and a 4 TB NVMe SSD provide fast capacity for large projects. The 1200 W 80 PLUS Gold power supply delivers stable power for sustained loads.

Suited for single-GPU compute, not multi-GPU scale

Creators and engineers who need one high-end GPU for simulation, 3D work or local model inference will find the CPU and memory headroom adequate. Builders planning dual-card configurations or custom liquid loops should look elsewhere because the mid-tower chassis and motherboard layout limit expansion space. Buyers who need more than 32 GB of RAM out of the box can add modules later using the four available slots.

Graphics card with 32 GB VRAM

The installed GeForce RTX 5090 provides 32 GB of video memory, which is the decisive figure for fitting large models or textures entirely on the GPU. If your workload exceeds that frame-buffer you will need a different graphics solution; if it fits, the rest of the system is built to keep the card fed with data.

How it compares

Measured against everything we stock in Gaming PCs, at today’s prices. Recalculated every night.

Price $7,288.99
Pricier than about 91% of the 24,925 comparable items (median $2,694.99).
RAM capacity 32 GB DDR5
Typical for this category: the median of 24,338 items is 32 GB.
SSD storage 4 TB NVMe
Higher than about 70% of the 24,468 comparable items (median 2 TB).

New to this? Buying a gaming PC with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Year of release2026
Product typeBusiness Desktops & Workstations
Recommended useWorkstation
Product colorBlack
Processor
ProcessorAMD Ryzen 9 9000 Series
CPU modelAMD Ryzen 9 9900 × 3D
CPU socketAM5
Memory
RAM capacity32 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage4 TB NVMe
Hard driveNo
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsGeForce RTX 5090
GPU interfacePCI Express x16
Audio & video
Audio chipIntegrated
Sound channels7.1 channels
Connectivity
Wi-Fi standardWi-Fi 7
Network speed2.5 Gbit/s
Ethernet controllerIntegrated
Wi-Fi802.11be Wireless LAN
Bluetooth support5.4
Ports & slots
Ethernet port1 port
Size & build
Form factorMid Tower
Compatibility
Windows 11 supportReady
Software
Operating systemWindows 11 Pro
More details
AI capabilityAI Ready
Cooling methodLiquid Cooling

Questions about this item

Does this system need a separate monitor, keyboard and mouse to operate?

Yes, the PC ships without a display or input devices; you must connect your own via the rear USB 2.0, USB 5Gbps, USB 10Gbps and USB4 ports and the GPU video outputs.

Can I keep my existing SATA hard drives or 2.5-inch SSDs and install them inside the case?

The Antec P20 chassis provides two internal 3.5"/2.5" bays and two additional 2.5" bays, and the PRIME X870-P motherboard includes two SATA 6Gb/s ports for those drives.

How can I verify the liquid cooler and RTX 5090 are running at their rated speeds after first boot?

Enter the UEFI or use Windows monitoring software to confirm the CPU reports up to 5.50 GHz boost, the 240 mm AIO pump and 140 mm PSU fan are spinning, and the GPU shows 32 GB VRAM with a PCI Express x16 link.

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