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

Adamant Custom

Adamant Custom 24-Core Ultra 9 285K RTX 5090 64GB 8TB Gaming PC

SKU CH-89W4-3DBAK

A 24-core Intel Core Ultra 9 285K and RTX 5090 32GB desktop with 64GB DDR5, 8TB NVMe storage and liquid cooling for rendering, AI workloads and high-end gaming

  • CPU TypeIntel Core Ultra 9 (Series 2)
  • CPU NameIntel Core Ultra 9 285K
  • CPU Socket TypeLGA 1851
  • GPU/VGA TypeGeForce RTX 5090
  • Memory Capacity64GB DDR5
  • Memory Slots (Available/Total)4 total
  • 24-core Intel Core Ultra 9 285K powers heavy rendering and AI workloads
  • GeForce RTX 5090 with 32GB VRAM drives 4K gaming and creative tasks
  • 64GB DDR5 memory handles large datasets with room to expand to 192GB
  • 8TB NVMe storage via dual 4TB Samsung 990 PRO drives reads up to 7450 MB/s
  • 360mm liquid cooler and 1200W 80 PLUS Gold PSU keep thermals and power stable

Core specification

This desktop is built around a 24-core Intel Core Ultra 9 285K processor and an Nvidia GeForce RTX 5090 graphics card with 32GB of video memory. It targets creators and engineers who run rendering, modelling or AI-learning workloads that demand sustained multi-threaded throughput and large GPU memory capacity. The system ships with Windows 11 Pro installed.

Compatibility checks

Verify that your workspace can accommodate a tower measuring 447 mm deep by 215 mm wide by 469 mm high. The motherboard provides four memory slots with 64GB of DDR5 populated and supports up to 192GB total. Rear I/O includes one USB4 Type-C port, two USB 3.2 Gen 2 ports, three USB 3.2 Gen 1 ports and four USB 2.0 ports. Network connectivity uses 2.5Gbps Ethernet and Wi-Fi 7 with Bluetooth 5.4.

Included components

A 360mm liquid cooler handles CPU thermals while a Thermaltake Toughpower 1200W 80 PLUS Gold unit supplies power. Storage consists of two 4TB Samsung 990 PRO PCIe 4.0x4 drives in M.2 slots delivering up to 7450 MB/s read and 6900 MB/s write speeds. The Gigabyte Z890 Eagle board adds four SATA 6Gb/s ports with RAID support and four additional M.2 connectors for future expansion.

Highlights

  • 24-core Intel Core Ultra 9 285K powers heavy rendering and AI workloads
  • GeForce RTX 5090 with 32GB VRAM drives 4K gaming and creative tasks
  • 64GB DDR5 memory handles large datasets with room to expand to 192GB
  • 8TB NVMe storage via dual 4TB Samsung 990 PRO drives reads up to 7450 MB/s
  • 360mm liquid cooler and 1200W 80 PLUS Gold PSU keep thermals and power stable

Specifications

CPU TypeIntel Core Ultra 9 (Series 2)
CPU NameIntel Core Ultra 9 285K
CPU Socket TypeLGA 1851
GPU/VGA TypeGeForce RTX 5090
Memory Capacity64GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD8TB NVMe
HDDNo
Operating SystemWindows 11 Pro
Form FactorTower
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

What comes in the box and what must I buy separately?

The tower ships with the Core Ultra 9 285K, 64 GB DDR5, two 4 TB Samsung 990 PRO drives, RTX 5090 32 GB, 1200 W 80 PLUS Gold PSU, 360 mm AIO cooler, Z890 EAGLE motherboard, Windows 11 Pro and a tempered-glass case. Monitor, keyboard and mouse are not included.

Should I choose the 64 GB DDR5 configuration or the 192 GB maximum?

The system arrives with 64 GB DDR5 installed across four slots. The board supports up to 192 GB, so you can add modules later if workloads demand more capacity.

What does the 5.70 GHz boost clock mean once the PC is running?

The 24-core CPU can reach 5.70 GHz on active cores under load, while the 360 mm liquid cooler keeps temperatures in check during sustained rendering or AI tasks.

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