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Black mid‑tower desktop with tempered glass side panel and liquid cooling visible inside

Adamant Custom

Adamant Custom Intel Core Ultra 9 285K 192GB DDR5 4TB NVMe RTX 5090 gaming PC

SKU CH-KVC3-FH1W6

Mid-tower desktop with 24-core Intel Core Ultra 9 285K, 192GB DDR5, 4TB NVMe and RTX 5090 32GB for rendering and AI workloads

  • Screen sizeNo Screen
  • ProcessorIntel Core Ultra 9 (Series 2)
  • RAM capacity192 GB DDR5
  • SSD storage4 TB NVMe
  • GraphicsGeForce RTX 5090
  • CPU modelIntel Core Ultra 9 285K
  • 24-core Intel Core Ultra 9 285K reaches 5.70 GHz for heavy multitasking
  • 192GB DDR5 memory handles large AI and rendering workloads
  • 4TB Samsung 990 PRO NVMe SSD delivers 7450 MB/s read speeds
  • Nvidia GeForce RTX 5090 32GB GPU accelerates 3D modelling and AI learning
  • 360mm liquid cooler with 140mm fan keeps CPU temperatures low quietly

24-Core Workstation for AI and Rendering

This desktop pairs a 24-core Intel Core Ultra 9 285K processor with 192GB of DDR5 memory and an Nvidia GeForce RTX 5090 graphics card. It is built for professionals running local AI models, complex 3D rendering, and high-resolution video editing. The liquid-cooled mid-tower chassis runs Windows 11 Pro out of the box.

192GB DDR5 at the Motherboard Limit

The Gigabyte Z890 UD motherboard supports a maximum of 192GB across its four slots, and this system populates every slot. That ceiling is the deciding spec: workloads needing more main memory must move to a different platform. The installed kit leaves no room for future RAM upgrades.

4TB NVMe SSD with 7450 MB/s Reads

The Samsung 990 Pro delivers up to 7450 MB/s sequential read and 6900 MB/s write speeds over PCIe 4.0 x4. Four terabytes holds large model weights, raw footage, and project archives comfortably. When active datasets exceed that capacity, a secondary drive must be added to the available M.2 or SATA ports.

How it compares

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

Price $8,680.99
Pricier than about 91% of the 24,925 comparable items (median $2,694.99).
RAM capacity 192 GB DDR5
Higher than about 95% of the 24,338 comparable items (median 32 GB).
SSD storage 4 TB NVMe
Higher than about 70% of the 24,468 comparable items (median 2 TB).

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Specifications

Product
Year of release2026
Product colorBlack
Processor
ProcessorIntel Core Ultra 9 (Series 2)
CPU modelIntel Core Ultra 9 285K
CPU socketLGA 1851
Memory
RAM capacity192 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
Audio & video
Audio chipIntegrated
Sound channels7.1 channels
Connectivity
Wi-Fi standardWi-Fi 6E
Network speed2.5 Gbit/s
Ethernet controllerIntegrated
Wi-Fi802.11ax 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

What does the 24-core Core Ultra 9 285K actually deliver in a built system?

The 24-core Core Ultra 9 285K runs at a 3.7 GHz base and can boost up to 5.70 GHz with 36 MB of L3 cache, giving strong multi-threaded throughput for rendering, modelling and AI workloads inside this mid-tower build.

How fast is the Samsung 990 PRO 4 TB drive on the PCIe 4.0 x4 link?

The Samsung 990 PRO 4 TB NVMe SSD is rated for sequential reads up to 7450 MB/s and writes up to 6900 MB/s over its PCIe 4.0 x4 interface.

Will the 360 mm liquid cooler and RTX 5090 fit in the Corsair 4000D case?

Yes — the Corsair 4000D mid-tower (490 x 239 x 486 mm) ships with the 360 mm AIO and the RTX 5090 32 GB already installed, so clearance is verified.

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