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Black mid-tower gaming PC with tempered glass side panel and liquid CPU cooler

Adamant Custom

Adamant Custom 12-Core Liquid Cooled Gaming PC Ryzen 9 9900X3D 32GB DDR5 4TB NVMe RTX 5090

SKU CH-JC4N-3Y54Y

A liquid-cooled gaming desktop with a 12-core Ryzen 9 9900X3D, 32 GB DDR5, 4 TB NVMe and an RTX 5090 GPU

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity32 GB DDR5
  • SSD storage4 TB NVMe
  • GraphicsGeForce RTX 5090
  • CPU modelAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D delivers high multi-thread speed
  • 32 GB DDR5 memory handles large workloads smoothly
  • 4 TB NVMe SSD stores games and projects fast
  • RTX 5090 32 GB GPU powers 4K gaming and AI tasks
  • 240 mm liquid cooler keeps CPU temperatures low

Ryzen 9 9900X3D liquid-cooled desktop

This Adamant Custom system pairs a 12-core Ryzen 9 9900X3D processor with a 240 mm AIO cooler, 32 GB of DDR5 memory, a 4 TB Samsung 990 PRO NVMe drive and an RTX 5090 graphics card in a mid-tower chassis. Windows 11 Pro is pre-installed and the 1200 W 80 PLUS Gold power supply provides stable delivery for sustained workloads.

Workstation buyers needing GPU compute

Creators and engineers who rely on 32 GB of VRAM and PCIe 4.0 NVMe throughput will benefit from the RTX 5090 and 7450 MB/s sequential reads. Users who require more than 32 GB of system memory out of the box or who need multiple 3.5-inch hard drives should consider other configurations.

32 GB VRAM on the RTX 5090

The graphics card ships with 32 GB of video memory, a single specification that determines whether the system can hold large models, textures or frame buffers without paging to system RAM. Buyers whose workflows fit within lower VRAM capacities may find a smaller card sufficient.

How it compares

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

Price $7,146.99
Pricier than about 90% of the 24,925 comparable items (median $2,694.99).
RAM capacity 32 GB DDR5
Typical for this category: the median of 24,338 items is 32 GB.
SSD storage 4 TB NVMe
Higher than about 70% of the 24,468 comparable items (median 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 typeBusiness Desktops & Workstations
Recommended useWorkstation
Product colorBlack
Processor
ProcessorAMD Ryzen 9 9000 Series
CPU modelAMD Ryzen 9 9900 × 3D
CPU socketAM5
Memory
RAM capacity32 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage4 TB NVMe
Hard driveNo
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsGeForce RTX 5090
GPU interfacePCI Express x16
Audio & video
Audio chipIntegrated
Sound channels7.1 channels
Connectivity
Wi-Fi standardWi-Fi 7
Network speed2.5 Gbit/s
Ethernet controllerIntegrated
Wi-Fi802.11be Wireless LAN
Bluetooth support5.4
Ports & slots
Ethernet port1 port
Size & build
Form factorMid Tower
Compatibility
Windows 11 supportReady
Software
Operating systemWindows 11 Pro
More details
AI capabilityAI Ready
Cooling methodLiquid Cooling

Questions about this item

What PCIe generation does the RTX 5090 use, and what bandwidth limit applies?

The graphics card connects through a PCI Express x16 slot. The motherboard provides PCIe 4.0 lanes, so the GPU is capped at 4.0 x16 bandwidth.

What are the case dimensions and motherboard form factor for this build?

The CoolerMaster HAF 500 measures 508 mm deep, 203 mm wide and 508 mm high. It accepts ATX motherboards such as the included TUF X870-PLUS.

How is the 240 mm AIO cooler mounted, and which step is often missed?

The radiator attaches to the case with supplied screws and fans. The step many builders forget is connecting the pump header and ARGB cable to the motherboard before closing the panel.

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