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Black mid-tower desktop with tempered glass side panel and liquid cooling visible inside

Adamant Custom

Adamant Custom 12-Core Ryzen 9 9900X3D 64GB 4TB NVMe 10TB RTX PRO 5000 business desktop

SKU CH-5KJ3-653FM

A 12-core Ryzen 9 9900X3D workstation with 64 GB DDR5, 4 TB NVMe SSD, 10 TB HDD and an RTX PRO 5000 48 GB GPU in a liquid-cooled tower

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity64 GB DDR5
  • SSD storage4 TB NVMe
  • GraphicsNVIDIA RTX PRO 5000 Blackwell
  • CPU modelAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D handles heavy multi-threaded workloads
  • 64GB DDR5 memory supports large assemblies and datasets
  • 4TB NVMe SSD delivers fast boot and project load times
  • RTX PRO 5000 48GB GPU accelerates certified CAD and simulation apps
  • 10TB HDD provides high-capacity local storage for archives

12-Core Ryzen 9 Workstation

This business desktop ships new with a 12-core AMD Ryzen 9 9900X3D processor reaching 4.4 GHz base frequency and 5.50 GHz boost. It includes 64 GB DDR5 memory, a 4 TB NVMe SSD, and a 10 TB hard drive. The NVIDIA RTX PRO 5000 Blackwell GPU provides 48 GB video memory for professional workloads.

Engineers and creators needing GPU memory

The 48 GB GPU frame buffer suits large assemblies, simulation datasets and multi-GPU rendering pipelines. Buyers who need more system memory than 64 GB or who require multiple add-in cards should look at a platform with additional DIMM slots and PCIe lanes.

Single-thread CPU frequency 4.4 GHz

The Ryzen 9 9900X3D runs at a 4.4 GHz base clock, which determines responsiveness in single-threaded CAD operations. If your primary applications scale across all 12 cores instead, a higher all-core turbo or greater core count would be more effective.

How it compares

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

Price $8,809.99
Pricier than about 70% 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
Recommended useWorkstation
Product colorBlack
Processor
ProcessorAMD Ryzen 9 9000 Series
CPU modelAMD Ryzen 9 9900 × 3D
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 5000 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

Does the X870 motherboard provide USB4 ports so existing USB-C peripherals can connect at full speed?

The PRIME X870-P board includes two USB4 ports at 40 Gbps, three USB 5 Gbps ports, one USB 10 Gbps port and four USB 2.0 ports on the rear panel, plus an internal USB 10 Gbps Type-C header and a USB 5 Gbps header for front-panel connections.

Will the 850 W power supply support the RTX PRO 5000 alongside older PCIe add-in cards I plan to keep?

The Thermaltake Smart 850 W 80 PLUS Bronze unit delivers 850 W with over-voltage, under-voltage, over-power and short-circuit protection, and the case has room for full-length cards, so legacy PCIe expansion cards can run alongside the GPU.

How can I confirm the 4 TB Samsung 990 PRO is operating at its rated PCIe 4.0 speeds after setup?

In Windows 11 Pro, open Task Manager → Performance → Disk and verify sequential read speeds near 7 450 MB/s and write speeds near 6 900 MB/s; the motherboard's M.2 slots are wired for PCIe 4.0 x4, matching the drive's specification.

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