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Adamant Custom

Adamant Custom Ryzen 9 9900X 12-Core 32GB DDR5 4TB NVMe 10TB HDD RTX PRO 4000 Blackwell Business Desktop

SKU CH-RM1H-01RVZ

A 12-core Ryzen 9 9900X workstation with 32GB DDR5, 4TB NVMe SSD, 10TB HDD and RTX PRO 4000 Blackwell graphics, liquid-cooled in a silent mid-tower case

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity32 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 fast compute
  • 32 GB DDR5 memory handles large datasets and multitasking
  • 4 TB NVMe SSD plus 10 TB HDD gives vast high-speed storage
  • Nvidia RTX PRO 4000 Blackwell 24 GB GPU accelerates professional graphics and AI
  • Liquid cooling and sound-damped case keep temperatures low and noise minimal

Ryzen 9 9900X Workstation

This desktop pairs a twelve-core Ryzen 9 9900X running at 4.4 GHz with 32 GB of DDR5 memory and a 240 mm liquid cooler. It targets engineers and researchers who need strong single-thread speed plus multi-core throughput for CAD, simulation and AI model training. The X870 TUF motherboard provides USB4 and Wi-Fi 7 connectivity in a sound-damped mid-tower case.

Stepping up from eight-core systems

Moving from an eight-core processor to this twelve-core design adds four more cores and a larger 96 MB L3 cache, cutting compile times and allowing larger datasets to stay in memory. The jump is worthwhile when workloads scale across threads — rendering, finite-element analysis or concurrent virtual machines — but offers little gain for purely single-threaded office applications.

PCIe 4.0 storage ceiling

The 4 TB Samsung 990 PRO operates at PCIe 4.0 x4, delivering sequential reads up to 7450 MB/s and writes up to 6900 MB/s. That bandwidth saturates the current interface, so future GPU-direct storage or heavier AI inference pipelines will require a platform move to PCIe 5.0 to avoid bottlenecks.

How it compares

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

Price $6,736.99
Pricier than about 57% of the 2,161 comparable items (median $5,687.99).
RAM capacity 32 GB DDR5
Lower than about 70% of the 2,095 comparable items (median 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 useBusiness
Product colorBlack
Processor
ProcessorAMD Ryzen 9 9000 Series
CPU modelAMD Ryzen 9 9900X
CPU socketAM5
Memory
RAM capacity32 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

What case clearances and motherboard form factor does the Antec P10 FLUX mid-tower support for this build?

The case accepts ATX motherboards such as the X870-PLUS TUF, with internal bays for three 3.5" and three 2.5" drives, front mounts for three 120 mm fans, a PSU shroud fan and a rear 120 mm fan, measuring 477 mm deep by 220 mm wide by 486 mm high.

Which CPU power and cooler connections must be made on the X870-PLUS TUF before first boot?

Connect the 24-pin ATX and 8-pin EPS cables from the 850 W Thermaltake Smart PSU, then attach the 240 mm AIO pump header and radiator fan headers; the Ryzen 9 9900X drops into the AM5 socket with 96 MB L3 cache and boosts to 5.20 GHz.

How far can the memory be expanded beyond the installed 32 GB DDR5, and which drive slots remain open?

The board supports up to 192 GB of DDR5; the 4 TB Samsung 990 PRO occupies one M.2 slot leaving three free, while the 10 TB HDD uses one 3.5" bay leaving two more 3.5" and three 2.5" bays available.

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