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Black Corsair 4000D mid-tower with tempered glass side panel, visible 240 mm liquid cooler and RTX 5090 graphics card

Adamant Custom

Adamant Custom Ryzen 9 9900X3D RTX 5090 64GB 1TB 10TB gaming PC

SKU CH-42AG-H04J2

A liquid-cooled desktop with a 12-core Ryzen 9 9900X3D, RTX 5090 32GB GPU, 64GB DDR5, 1TB NVMe SSD and 10TB HDD for modelling, rendering and AI workloads

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity64 GB DDR5
  • SSD storage1 TB NVMe
  • GraphicsGeForce RTX 5090
  • CPU modelAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy workloads
  • RTX 5090 32 GB GPU accelerates AI and rendering tasks
  • 64 GB DDR5 memory handles large datasets without swapping
  • 1 TB NVMe SSD plus 10 TB HDD stores projects and archives
  • Liquid cooling keeps temperatures low during sustained loads

Custom workstation for modelling and AI learning

This Adamant Custom desktop combines a 12-core AMD Ryzen 9 9900X3D processor with an Nvidia GeForce RTX 5090 graphics card. It ships with Windows 11 Pro and 64 GB of DDR5 memory. The system targets professionals who need compute power for rendering, simulation and machine-learning workloads.

32 GB GPU memory for large model training

The RTX 5090 provides 32 GB of video memory, the single specification that determines whether this machine can hold large neural networks or high-resolution textures without off-loading to system RAM. Buyers who need more VRAM for bigger batches cannot meet that requirement with this configuration.

Liquid cooling sustains 5.50 GHz boost clocks

A 240 mm quiet-edition AIO keeps the CPU at its 5.50 GHz maximum boost under prolonged compile or render jobs. The 1200 W 80 PLUS Gold power supply delivers stable current for the GPU during extended training runs. Thermal throttling is minimised so throughput stays consistent over hours.

How it compares

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

Price $7,958.99
Pricier than about 91% of the 24,925 comparable items (median $2,694.99).
RAM capacity 64 GB DDR5
Higher than about 60% of the 24,338 comparable items (median 32 GB).
SSD storage 1 TB NVMe
Lower 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 capacity64 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage1 TB NVMe
Hard drive10 TB
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 factorDesktop
Compatibility
Windows 11 supportReady
Software
Operating systemWindows 11 Pro
More details
AI capabilityAI Ready
Cooling methodLiquid Cooling

Questions about this item

What does the 5.50 GHz boost mean once the Ryzen 9 9900X3D is inside the machine?

The 12-core CPU can reach 5.50 GHz for short bursts, giving faster single-thread response in games and snappier UI while the 240 mm liquid cooler keeps temperatures in check.

What does the PCI Express x16 graphics interface cap in practice for the RTX 5090?

The x16 slot delivers full bandwidth to the RTX 5090, so the 32 GB GPU runs without a bottleneck for 4K gaming and AI workloads.

What does the Corsair 4000D case need to fit the 240 mm liquid cooler and the RTX 5090?

The 490 mm deep chassis has room for a 240 mm radiator at the front or top and clears long graphics cards, so both the AIO and the RTX 5090 install without modification.

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