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Black mid-tower case with tempered glass side panel, liquid CPU cooler visible inside

Adamant Custom

Adamant Custom 12-Core Liquid Cooled Gaming PC Ryzen 9 9900X3D 128GB DDR5 8TB NVMe RTX 5070

SKU CH-8F7J-V4E3F

Liquid-cooled gaming workstation with a 12-core Ryzen 9 9900X3D, 128 GB DDR5, 8 TB NVMe storage and an RTX 5070 graphics card

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity128 GB DDR5
  • SSD storage8 TB NVMe
  • GraphicsGeForce RTX 5070
  • CPU modelAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy workloads
  • 128 GB DDR5 memory handles large projects without swapping
  • 8 TB NVMe storage from dual Samsung 990 PRO drives loads assets fast
  • 240 mm liquid cooler keeps CPU temperatures low under load
  • RTX 5070 12 GB GPU accelerates rendering and AI tasks

12-Core Workstation Desktop

This new tower system pairs a 12-core AMD Ryzen 9 9900X3D processor with 128GB of DDR5 memory and an 8TB NVMe storage array. It ships with Windows 11 Pro and a 240mm liquid cooler inside a tempered-glass mid-tower case. The configuration targets professionals who need high core counts and large memory capacity for content creation or simulation workloads.

128GB DDR5 Memory Capacity

The board provides four DDR5 slots populated to 128GB with a maximum supported capacity of 192GB. This density suits memory-intensive tasks such as virtualisation, large-dataset analysis or complex rendering pipelines. Buyers who need more than 192GB of system memory must choose a different platform.

Sustained Load Thermal Behaviour

A 240mm quiet-edition AIO cooler handles the CPU while the case supplies three 120mm front fans and dust filters on bottom, front and top panels. The 850W 80 PLUS Bronze power supply uses a 140mm fan rated for low noise. Builders who prefer air cooling or require a smaller chassis footprint will not be served by this liquid-cooled tower layout.

How it compares

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

Price $5,294.99
Pricier than about 87% of the 24,925 comparable items (median $2,694.99).
RAM capacity 128 GB DDR5
Higher than about 80% of the 24,338 comparable items (median 32 GB).
SSD storage 8 TB NVMe
Higher than about 99% 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 capacity128 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage8 TB NVMe
Hard driveNo
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsGeForce RTX 5070
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 factorTower
Compatibility
Windows 11 supportReady
Software
Operating systemWindows 11 Pro
More details
AI capabilityAI Ready
Cooling methodLiquid Cooling

Questions about this item

What does the 12-core 4.4 GHz Ryzen 9 9900X3D deliver in a real system?

The 12-core CPU runs at 4.4 GHz base with a 5.50 GHz boost and 128 MB L3 cache, giving strong multi-thread throughput for rendering, compilation and heavy multitasking while the 240 mm liquid cooler keeps temperatures in check.

How does the PCI Express x16 link affect the RTX 5070 in this build?

The graphics card connects through a full PCI Express x16 slot on the PRIME X870-P motherboard, so the GPU receives the full lane width the platform provides for maximum bandwidth.

Will the Antec P20 case and 850 W PSU handle the components without extra mounting work?

The mid-tower case measures 469 x 220 x 490 mm, supports E-ATX boards, includes 3 x 120 mm front fans and dust filters, and the Thermaltake Smart 850 W 80 PLUS Bronze unit powers the CPU, RTX 5070, 128 GB DDR5 and dual 4 TB SSDs with headroom.

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