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Black mid-tower desktop with tempered glass side panel and ARGB lighting

Adamant Custom

Adamant Custom 20-Core Ultra 7 265K RTX 5090 128GB 8TB Gaming PC

SKU CH-VXXG-SEE0M

A liquid-cooled desktop with a 20-core Intel Core Ultra 7 265K, RTX 5090 32GB GPU, 128GB DDR5 memory and 8TB NVMe storage for rendering, AI work and gaming

  • Release Year2026
  • TypeBusiness Desktops & Workstations
  • Form FactorDesktop
  • AI FeaturesAI Ready
  • UsageWork / Business
  • ColorBlack
  • 20-core Intel Core Ultra 7 265K delivers high multi-threaded performance
  • 128GB DDR5 memory handles large datasets and multitasking
  • Nvidia GeForce RTX 5090 32GB GPU powers AI and rendering workloads
  • 8TB NVMe storage via dual Samsung 990 PRO drives offers fast read and write speeds
  • 240mm liquid CPU cooler keeps temperatures low under sustained loads

Adamant Custom 20-Core Workstation PC

This desktop combines a 20-core Intel Core Ultra 7 265K processor with 128GB of DDR5 memory and an Nvidia GeForce RTX 5090 graphics card. Two 4TB Samsung 990 PRO drives deliver 8TB of NVMe storage. A 240mm liquid cooler and 1000W 80 PLUS Gold power supply support sustained workloads. Windows 11 Pro is pre-installed.

Suits rendering, modelling and AI learning

The specification targets professionals who need high core counts, large memory capacity and a 32GB GPU for local inference or 3D work. The Z890 motherboard provides Thunderbolt 4 and Wi-Fi 7 connectivity. Buyers who need more than 128GB of RAM or multiple graphics cards should consider a different platform. The mid-tower case limits internal drive expansion to one 3.5-inch or two 2.5-inch bays.

128GB DDR5 memory capacity

The system ships with 128GB of DDR5 installed across four slots and the motherboard supports a maximum of 192GB. This figure determines whether the workstation can hold your datasets or virtual machines without upgrading. If your workload requires the full 192GB limit, plan for additional modules at purchase. The DDR5 standard is the only memory type compatible with this platform.

Highlights

  • 20-core Intel Core Ultra 7 265K delivers high multi-threaded performance
  • 128GB DDR5 memory handles large datasets and multitasking
  • Nvidia GeForce RTX 5090 32GB GPU powers AI and rendering workloads
  • 8TB NVMe storage via dual Samsung 990 PRO drives offers fast read and write speeds
  • 240mm liquid CPU cooler keeps temperatures low under sustained loads

Specifications

Release Year2026
TypeBusiness Desktops & Workstations
Form FactorDesktop
AI FeaturesAI Ready
UsageWork / Business
ColorBlack
Cooling SystemLiquid Cooling
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeIntel Core Ultra 7
CPU NameIntel Core Ultra 7 265K
CPU Socket TypeLGA 1700
GPU/VGA TypeGeForce RTX 5090
Memory Capacity128GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD8TB NVMe
HDDNo
Optical Drive TypeNo
Screen SizeNo Screen
Audio ChipsetIntegrated
Audio Channels7.1 channels
LAN ChipsetIntegrated
LAN Speed2.5Gbps
WLAN802.11be Wireless LAN
WiFi GenerationWi-Fi 7
BluetoothBluetooth 5.4
RJ451 port

Questions about this item

What monitor connections does the RTX 5090 provide for my display?

The GeForce RTX 5090 32GB card includes DisplayPort and HDMI outputs, so you can plug in any modern monitor using a standard cable.

Will my existing SATA SSDs or hard drives fit inside this chassis?

Yes, the Ceres 300 case has bays for one 3.5-inch drive or two 2.5-inch drives, and the Z890 motherboard provides four SATA 6Gb/s ports.

How can I confirm the 128GB DDR5 kit is running at its rated speed after I power on?

Open Task Manager, select the Performance tab, click Memory and verify the reported speed matches the DDR5 rating shown on the module labels.

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