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Black mid-tower case with tempered glass side panel, vertical GPU, liquid cooling radiator at top

Adamant Custom

Adamant Custom 24-Core Intel Core Ultra 9 285K 128GB DDR5 2TB NVMe 10TB HDD RTX 5090 Gaming PC

SKU CH-S63C-JW84C

A 24-core Intel Core Ultra 9 285K desktop with 128GB DDR5, 2TB NVMe, 10TB HDD and RTX 5090 32GB GPU, liquid-cooled in a Corsair 4000D case with 1200W Gold PSU, Wi-Fi 6E and Windows 11 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core Ultra 9 (Series 2)
  • RAM capacity128 GB DDR5
  • SSD storage2 TB NVMe
  • GraphicsGeForce RTX 5090
  • CPU modelIntel Core Ultra 9 285K
  • 24-core Intel Core Ultra 9 285K handles heavy rendering and AI workloads
  • 128GB DDR5 memory supports large datasets and multitasking
  • 2TB Samsung 990 PRO NVMe delivers 7450 MB/s reads for fast project loading
  • 10TB HDD with 256MB cache provides massive bulk storage
  • RTX 5090 32GB GPU accelerates 3D modelling and deep learning tasks

24-Core Intel Core Ultra 9 Workstation

This Adamant Custom desktop pairs a 24-core Intel Core Ultra 9 285K processor with 128GB of DDR5 memory and an Nvidia GeForce RTX 5090 32GB graphics card. A 2TB NVMe SSD and 10TB hard drive provide fast boot and deep archival storage. Windows 11 Pro is pre-installed for immediate deployment in rendering, editing, modelling or AI learning workflows.

Upgrade From Slower Multi-Core Systems

The 24-core configuration and 128GB DDR5 capacity replace machines that bottleneck on core count or memory bandwidth during heavy parallel workloads. The RTX 5090 adds 32GB of video memory for large scene rendering and model training. The jump is worth it when current hardware cannot hold full datasets in RAM or GPU VRAM, forcing constant paging to disk.

Pre-Built Liquid-Cooled Assembly

The system arrives fully assembled with a 360mm liquid CPU cooler mounted inside a Corsair 4000D case. A 1200W 80 PLUS Gold power supply feeds all components through factory-routed cables. Typical issues include transit vibration loosening the GPU retention bracket or memory modules; reseat both before first power-on. BIOS defaults may need XMP enabled to run DDR5 at rated speed.

How it compares

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

Price $8,267.99
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 colorBlack
Processor
ProcessorIntel Core Ultra 9 (Series 2)
CPU modelIntel Core Ultra 9 285K
CPU socketLGA 1851
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
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 factorDesktop
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 give for the 360 mm liquid cooler radiator?

The case supports a 360 mm radiator in the front, top or bottom positions; the supplied AIO uses a 360 mm radiator with three 120 mm fans.

Which motherboard headers do the AIO pump and the RTX 5090 power cables connect to on the Z890 UD board?

Plug the pump tach wire into the CPU_FAN header and the three radiator fans into SYS_FAN headers; the RTX 5090 draws power from the PSU via its 12VHPWR connector.

How do I add more DDR5 memory later and what is the ceiling?

Four DIMM slots are fitted with 128 GB today; the Z890 UD board supports up to 192 GB of DDR5, so you can populate the empty slots or replace modules.

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