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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

  • Release Year2026
  • TypeBusiness Desktops & Workstations
  • Form FactorDesktop
  • AI FeaturesAI Ready
  • UsageWorkstation
  • ColorBlack
  • 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.

Highlights

  • 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

Specifications

Release Year2026
TypeBusiness Desktops & Workstations
Form FactorDesktop
AI FeaturesAI Ready
UsageWorkstation
ColorBlack
Cooling SystemLiquid Cooling
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeAMD Ryzen 9 9000 Series
CPU NameAMD Ryzen 9 9900X3D
CPU Socket TypeAM5
GPU/VGA TypeGeForce RTX 5090
Graphics InterfacePCI Express x16
Memory Capacity128GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD2TB NVMe
HDD10TB
Optical Drive TypeNo
Screen SizeNo Screen
Audio ChipsetIntegrated
Audio Channels7.1 channels
LAN ChipsetIntegrated
LAN Speed2.5Gbps
WLAN802.11be Wireless LAN
WiFi GenerationWi-Fi 7
BluetoothBluetooth 5.4
RJ451 port

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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