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Black mid-tower desktop with liquid cooling visible inside

Adamant Custom

Adamant Custom 12-Core Ryzen 9 9900X 64GB DDR5 4TB NVMe 10TB HDD RTX PRO 4000 Blackwell business desktop

SKU CH-4FA8-KM4DK

A 12-core Ryzen 9 9900X workstation with 64 GB DDR5, 4 TB NVMe, 10 TB HDD and an RTX PRO 4000 Blackwell GPU for CAD, AI and VR workloads

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity64 GB DDR5
  • SSD storage4 TB NVMe
  • GraphicsNvidia RTX PRO 4000 Blackwell
  • CPU modelAMD Ryzen 9 9900X
  • 12-core Ryzen 9 9900X reaches 5.20 GHz for heavy workloads
  • 64 GB DDR5 memory handles large datasets and multitasking
  • 4 TB NVMe SSD reads up to 7450 MB/s for fast boot and load
  • 10 TB HDD with 256 MB cache stores massive project archives
  • RTX PRO 4000 Blackwell 24 GB GPU accelerates CAD and AI tasks

Built for intensive workloads

This business desktop combines a 12-core AMD Ryzen 9 9900X processor with 64GB of DDR5 memory and an Nvidia RTX PRO 4000 Blackwell GPU. It targets engineers, designers and AI researchers who need reliable multi-threaded compute and professional graphics certification in a single workstation.

Storage and memory layout

A 4TB Samsung 990 PRO NVMe drive delivers sequential reads up to 7450 MB/s and writes up to 6900 MB/s for active project files. The 10TB hard drive with 256MB cache adds bulk capacity for archives, while four M.2 slots on the motherboard allow future expansion up to 192GB of total system memory.

Connectivity and power envelope

The system relies on PCI Express x16 for the graphics card and PCIe 4.0 x4 for the primary SSD, limiting throughput to those lane counts. Rear I/O includes 2.5G Ethernet and Wi-Fi 7 wireless, while the 850W 80 PLUS Bronze power supply caps total sustained draw, constraining future GPU upgrades that exceed its headroom.

How it compares

Measured against everything we stock in Business & Office Desktops, at today’s prices. Recalculated every night.

Price $6,332.99
Pricier than about 54% of the 2,161 comparable items (median $5,687.99).
RAM capacity 64 GB DDR5
Typical for this category: the median of 2,095 items is 64 GB.
SSD storage 4 TB NVMe
Higher than about 70% of the 2,058 comparable items (median 2 TB).

Specifications

Product
Year of release2026
Product typeBusiness Desktops & Workstations
Recommended useWork / Business
Product colorBlack
Processor
ProcessorAMD Ryzen 9 9000 Series
CPU modelAMD Ryzen 9 9900X
CPU socketAM5
Memory
RAM capacity64 GB DDR5
Max supported RAM192 GB
Storage
SSD storage4 TB NVMe
Hard drive10 TB
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsNvidia RTX PRO 4000 Blackwell
GPU interfacePCI Express x16
VR readyYes
Audio & video
Sound channels7.1 channels
Connectivity
Wi-Fi standardWi-Fi 7
Network speed2.5 Gbit/s
Wired network2.5G Ethernet
Ethernet controllerIntegrated
Wi-Fi802.11be Wireless LAN
Bluetooth support5.4
Ports & slots
Ethernet port1 port
Size & build
Form factorDesktop
In the box
Included monitorNot included
Software
Operating systemWindows 11 Pro 64-bit
More details
Cooling methodLiquid Cooling
AI capabilityAI Ready

Questions about this item

Will the 240 mm liquid cooler need refilling or pump replacement down the line?

The 240 mm AIO is a sealed maintenance-free loop; no refills are required and the pump is rated for continuous operation.

Which component hits its thermal ceiling first when the Ryzen 9 9900X runs at 5.20 GHz all day?

The CPU package temperature will reach its limit before the GPU or VRM, so the liquid cooler and case airflow determine sustained boost duration.

How loud does the 140 mm PSU fan and the three 120 mm front fans get under full load?

The PSU uses an ultra-quiet 140 mm fan and the case includes sound-dampening panels, keeping overall noise low even at maximum cooling demand.

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