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Black mid-tower case with tempered glass side panel and visible liquid cooling radiator

Adamant Custom

Adamant Custom Core Ultra 9 285K RTX 5090 64GB DDR5 4TB NVMe gaming PC

SKU CH-EZWK-0CRWA

A 24-core Intel Core Ultra 9 285K and GeForce RTX 5090 32GB desktop with 64GB DDR5, 4TB NVMe storage and 360mm liquid cooling in a Corsair 4000D mid-tower

  • Screen sizeNo Screen
  • ProcessorIntel Core Ultra 9 (Series 2)
  • RAM capacity64 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 rendering and AI workloads
  • Nvidia GeForce RTX 5090 with 32GB VRAM drives 4K gaming and professional visualisation
  • 64GB DDR5 high-performance memory supports multitasking with headroom to 192GB
  • 4TB Samsung 990 PRO NVMe SSD delivers 7450 MB/s reads for rapid project loading
  • 360mm liquid cooler and 1200W 80 PLUS Gold PSU keep sustained performance stable and quiet

24-Core Intel Core Ultra 9 285K Workstation

This desktop pairs a 24-core Intel Core Ultra 9 285K processor with 64GB of DDR5 memory and a GeForce RTX 5090 graphics card. A 4TB Samsung 990 PRO NVMe drive provides primary storage. The system ships with Windows 11 Pro installed in a Corsair 4000D mid-tower case cooled by a 360mm liquid cooler.

Creators needing GPU compute

The 32GB frame buffer on the RTX 5090 and 64GB of system memory suit 3D rendering, video editing and local AI workloads that benefit from large VRAM and fast PCIe 4.0 storage. Buyers who need more than 64GB of RAM or multiple graphics cards should look at a platform with additional DIMM slots and a larger power supply.

32GB VRAM on the GeForce RTX 5090

The graphics card delivers 32GB of video memory, which determines whether large models, high-resolution textures or multi-layer timelines fit entirely on the GPU. If your datasets exceed that capacity, the system will swap to system memory and performance will drop.

How it compares

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

Price $8,263.99
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 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 colorBlack
Processor
ProcessorIntel Core Ultra 9 (Series 2)
CPU modelIntel Core Ultra 9 285K
CPU socketLGA 1851
Memory
RAM capacity64 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 clearance does the Corsair 4000D case need for the 360mm liquid cooler radiator?

The 360mm radiator mounts in the roof of the Corsair 4000D and requires 360mm of unobstructed length plus fan thickness; the case dimensions are 490mm deep by 239mm wide by 486mm high.

Which power cables must be connected to the RTX 5090 during build, and what mistake do builders make?

The Thermaltake 1200W unit supplies native 12VHPWR cables; plug all required connectors directly from the PSU without daisy-chaining a single cable, and seat each connector until the latch clicks.

When will the Samsung 990 PRO 4TB SSD need replacement under heavy write workloads?

The drive is rated for up to 7450 MB/s read and 6900 MB/s write; endurance scales with capacity, so the 4TB model handles significantly more total data written than smaller variants.

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