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

Adamant Custom

Adamant Custom 24-Core Liquid Cooled Gaming PC Intel Core Ultra 9 285K 32GB DDR5 4TB NVMe 10TB HDD RTX 5090

SKU CH-0B6C-HDVPK

Liquid-cooled gaming desktop with a 24-core Intel Core Ultra 9 285K, 32GB DDR5, 4TB NVMe plus 10TB HDD, and an RTX 5090 GPU

  • CPU TypeIntel Core Ultra 9 (Series 2)
  • CPU NameIntel Core Ultra 9 285K
  • CPU Socket TypeLGA 1851
  • GPU/VGA TypeGeForce RTX 5090
  • Memory Capacity32GB DDR5
  • Memory Slots (Available/Total)4 total
  • 24-core Intel Core Ultra 9 285K reaches 5.70 GHz for heavy workloads
  • 32 GB DDR5 memory with four slots expandable to 192 GB
  • 4 TB Samsung 990 PRO NVMe SSD reads up to 7450 MB/s
  • Nvidia GeForce RTX 5090 32 GB GPU drives 4K gaming and AI tasks
  • 360 mm liquid cooler and 1200 W 80 PLUS Gold PSU sustain peak performance

Ready-built workstation for creators and gamers

This desktop ships fully assembled with a 24-core Intel Core Ultra 9 285K processor, 32GB of DDR5 memory and an Nvidia GeForce RTX 5090 graphics card. A 4TB NVMe SSD and a 10TB hard drive provide fast boot and deep archival storage. Windows 11 Pro is pre-installed so the machine is ready for heavy rendering, simulation or high-refresh gaming straight away.

Installation is straightforward but bulky

The mid-tower case measures 475 by 245 by 463 millimetres and weighs enough to need two people to lift safely. A 360 mm all-in-one liquid cooler is already mounted, leaving only the side panel and power cable to connect. Front-panel USB 3.2 Type-C and audio ports are wired; internal drive bays accept one 3.5-inch or two 2.5-inch devices if extra storage is added later.

Suits professionals who need maximum GPU memory

The 32GB frame buffer on the RTX 5090 handles large 3D scenes, video timelines and machine-learning batches without swapping. Buyers who only need 1080p gaming or light office work will find the specification excessive. Anyone requiring ECC memory, dual-socket scaling or a rack-mount form factor should look at a server-class platform instead.

Highlights

  • 24-core Intel Core Ultra 9 285K reaches 5.70 GHz for heavy workloads
  • 32 GB DDR5 memory with four slots expandable to 192 GB
  • 4 TB Samsung 990 PRO NVMe SSD reads up to 7450 MB/s
  • Nvidia GeForce RTX 5090 32 GB GPU drives 4K gaming and AI tasks
  • 360 mm liquid cooler and 1200 W 80 PLUS Gold PSU sustain peak performance

Specifications

CPU TypeIntel Core Ultra 9 (Series 2)
CPU NameIntel Core Ultra 9 285K
CPU Socket TypeLGA 1851
GPU/VGA TypeGeForce RTX 5090
Memory Capacity32GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD4TB NVMe
HDD10TB
Operating SystemWindows 11 Pro
Form FactorMid Tower
Release Year2026
AI FeaturesAI Ready
ColorBlack
Cooling SystemLiquid Cooling
Windows 11Ready
LAN Speed2.5Gbps
WiFi GenerationWi-Fi 7
LAN ChipsetIntegrated
WLAN802.11be Wireless LAN
BluetoothBluetooth 5.4
Optical Drive TypeNo
Screen SizeNo Screen
Audio ChipsetIntegrated
Audio Channels7.1 channels
RJ451 port

Questions about this item

How can I verify the Intel Core Ultra 9 285K and RTX 5090 are running correctly after I set up the PC?

Boot into Windows 11 Pro, open Task Manager and confirm the CPU shows 24 cores with a base speed of 3.7 GHz and the GPU is listed as an RTX 5090 with 32 GB of video memory.

What components come inside the Ceres 300 case and what must I purchase separately?

The system ships fully assembled with the Z890 motherboard, 24-core CPU, 360 mm liquid cooler, 32 GB DDR5, 4 TB Samsung 990 PRO SSD, 10 TB HDD, RTX 5090, 1200 W Gold PSU and Windows 11 Pro; only a monitor, keyboard and mouse are needed.

Which memory capacity should I choose if I want headroom for future upgrades?

The board has four DDR5 slots supporting up to 192 GB total, so the installed 32 GB kit leaves three slots free for adding more DDR5 modules later.

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