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Black mid-tower PC with tempered glass side panel and liquid cooling

Adamant Custom

Adamant Custom Ryzen 9 9900X3D RTX 5090 64GB DDR5 4TB NVMe gaming PC

SKU CH-R5BB-EB06B

A liquid-cooled workstation with a 12-core Ryzen 9 9900X3D, RTX 5090 32GB GPU, 64GB DDR5 and 4TB NVMe SSD for modelling, rendering and AI learning

  • Release Year2026
  • TypeBusiness Desktops & Workstations
  • Form FactorMid Tower
  • AI FeaturesAI Ready
  • UsageWorkstation
  • ColorBlack
  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz boost for heavy workloads
  • RTX 5090 32GB GPU drives 4K gaming and AI tasks
  • 64GB DDR5 memory handles large datasets and multitasking
  • 4TB Samsung 990 PRO NVMe SSD delivers 7450 MB/s reads
  • 240mm liquid cooler keeps CPU temperatures low under load

Custom 12-core workstation

This Adamant Custom desktop pairs a 12-core Ryzen 9 9900X3D processor with an RTX 5090 graphics card and 64GB of DDR5 memory. A 4TB NVMe SSD provides fast primary storage. The system ships with Windows 11 Pro installed and is marketed as AI-ready for modelling, rendering and learning workloads.

Mid-tower liquid-cooled platform

The components sit in an Antec P20 mid-tower case measuring 469 by 220 by 490 millimetres. A 240mm liquid cooler handles the CPU while three 120mm front fans and a 140mm PSU fan move air through dust filters on three sides. The Thermaltake Toughpower 1200W 80 PLUS Gold unit powers the build. The PRIME X870-P motherboard offers four M.2 slots and rear I/O that includes two USB4 ports, one USB 10Gbps port, three USB 5Gbps ports, four USB 2.0 ports and Intel 2.5Gb Ethernet.

Suited for high-core-count GPU workflows

This configuration suits users who need 12 cores, 32GB of GPU memory and 64GB of system memory in a single mid-tower chassis. Builders who require more than 4TB of internal NVMe storage, additional 3.5-inch drive bays beyond the two provided, or a smaller form factor should consider other platforms.

Highlights

  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz boost for heavy workloads
  • RTX 5090 32GB GPU drives 4K gaming and AI tasks
  • 64GB DDR5 memory handles large datasets and multitasking
  • 4TB Samsung 990 PRO NVMe SSD delivers 7450 MB/s reads
  • 240mm liquid cooler keeps CPU temperatures low under load

Specifications

Release Year2026
TypeBusiness Desktops & Workstations
Form FactorMid Tower
AI FeaturesAI Ready
UsageWorkstation
ColorBlack
Cooling SystemLiquid Cooling
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeAMD Ryzen 9 9000 Series
CPU NameAMD Ryzen 9 9900X3D
CPU Socket TypeAM5
GPU/VGA TypeGeForce RTX 5090
Graphics InterfacePCI Express x16
Memory Capacity64GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD4TB 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

Does the 240mm liquid cooler keep the Ryzen 9 9900X3D at 4.4GHz under sustained all-core load?

The 240mm Quiet Edition AIO is rated for the 120W class 12-core CPU; prolonged heavy workloads will hit thermal limits before the 5.50GHz boost ceiling is reached.

What noise and heat levels should I expect from the 1200W Gold PSU and 140mm fan during 24-hour rendering?

The Thermaltake Toughpower 1200W 80 PLUS Gold unit uses a 140mm ultra-quiet fan and Japanese capacitors, so acoustic output stays low while efficiency remains high under continuous draw.

Will the PRIME X870-P motherboard POST without any storage installed in the four M.2 slots?

The board provides four M.2 connectors but ships with a single 4TB Samsung 990 PRO in one slot; the other three are empty, so an OS drive is already present for immediate boot.

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