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Black mid-tower with tempered glass side panel and liquid CPU cooler

Adamant Custom

Adamant Custom Ryzen 9 9900X3D 128GB DDR5 2TB NVMe 10TB HDD RTX 5090 gaming PC

SKU CH-M9KC-2GA4G

A 12-core Ryzen 9 9900X3D workstation with 128GB DDR5, 2TB NVMe, 10TB HDD and an RTX 5090 for modelling, rendering and AI learning

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity128 GB DDR5
  • SSD storage2 TB NVMe
  • GraphicsGeForce RTX 5090
  • CPU modelAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy compute workloads
  • 128 GB DDR5 memory handles large datasets and multitasking without swapping
  • RTX 5090 with 32 GB VRAM accelerates rendering and AI training
  • 2 TB NVMe SSD plus 10 TB HDD gives fast boot and massive storage
  • Liquid cooling and 1200 W Gold PSU sustain peak performance quietly

Workstation for AI and rendering

This desktop combines a twelve-core AMD Ryzen 9 9900X3D processor with 128GB of DDR5 memory and an Nvidia GeForce RTX 5090 graphics card. It targets professionals who run local AI training, 3D modelling or video editing workloads that demand both high core counts and large VRAM. The system ships with Windows 11 Pro installed and includes a 240mm liquid cooler for the CPU.

32GB VRAM on RTX 5090

The graphics card provides 32GB of video memory, which is the single figure that determines whether large models or 8K textures fit entirely on the GPU. If your workflow exceeds that capacity you will see paging to system memory and a sharp performance drop. The card connects through a PCI Express x16 slot on the PRIME X870-P motherboard.

Liquid cooling under sustained load

A 240mm quiet-edition AIO cooler handles the CPU heat output during long rendering or training sessions. The Thermaltake Toughpower 1200W 80 PLUS Gold power supply delivers stable current with Japanese main capacitors and a 140mm low-noise fan. The Corsair 4000D case provides airflow through front and top mounts to keep internal temperatures steady over hours of continuous work.

How it compares

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

Price $9,074.99
Pricier than about 91% of the 24,925 comparable items (median $2,694.99).
RAM capacity 128 GB DDR5
Higher than about 80% of the 24,338 comparable items (median 32 GB).
SSD storage 2 TB NVMe
Typical for this category: the median of 24,468 items is 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 capacity128 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage2 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

How does the 12-core Ryzen 9 9900X3D perform inside this chassis with liquid cooling?

The 12-core 24-thread CPU runs at 4.4 GHz base and can boost to 5.50 GHz with 128 MB L3 cache, sustained by a 240 mm AIO liquid cooler in the Corsair 4000D case.

What bandwidth does the PCI Express x16 slot provide for the RTX 5090?

The PRIME X870-P motherboard wires the GPU to a full PCI Express x16 link, giving the RTX 5090 32 GB card the maximum lane width the platform supports.

Will the 490 mm deep Corsair 4000D case fit on my desk and accept the 240 mm radiator?

The case measures 490 mm deep, 239 mm wide and 486 mm high, with internal bays for two 3.5-inch and two 2.5-inch drives and a top mount for the 240 mm AIO radiator.

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