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Black mid-tower desktop with tempered glass side panel

Adamant Custom

Adamant Custom Ryzen 9 9900X Liquid Cooled Business Desktop 64GB 8TB NVMe 10TB HDD RTX A400

SKU CH-RFF5-4B1SB

A liquid-cooled business desktop with a 12-core Ryzen 9 9900X, 64 GB DDR5, 8 TB NVMe, 10 TB HDD and an RTX A400 graphics card

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity64 GB DDR5
  • SSD storage8 TB NVMe
  • GraphicsNvidia RTX A400
  • CPU modelAMD Ryzen 9 9900X
  • 12-core Ryzen 9 9900X powers demanding workloads
  • 240 mm liquid cooler keeps CPU temperatures low
  • 64 GB DDR5 memory handles large datasets smoothly
  • 8 TB NVMe plus 10 TB HDD stores massive project files
  • RTX A400 with four Mini DisplayPort outputs drives multi-monitor setups

System Overview

This business desktop pairs a 12-core AMD Ryzen 9 9900X processor with 64GB of DDR5 memory and an Nvidia RTX A400 graphics card. A 240mm liquid cooler handles CPU thermals inside an Antec P20 mid-tower case. Windows 11 Pro 64-bit is pre-installed for immediate deployment in professional environments.

Compatibility Check

Verify that your monitors accept Mini DisplayPort inputs or plan for adapters, as the RTX A400 provides four MiniDP outputs. The motherboard offers rear USB4, 10Gbps and 5Gbps ports plus front-panel USB 3.0 and USB 3.2 Gen 2 Type-C connections. Ensure your network infrastructure can utilise the onboard 2.5GbE and Wi-Fi 7 wireless capability.

Build Integration

Dual 4TB Samsung 990 PRO NVMe drives deliver up to 7450 MB/s read and 6900 MB/s write speeds for active workloads, while a 10TB hard drive with 256MB cache provides bulk storage. The 750W 80 PLUS Bronze power supply feeds all components, and the case includes three 120mm front fans alongside the liquid cooler. Four M.2 slots and multiple SATA ports remain available for future expansion.

How it compares

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

Price $4,093.99
Cheaper than about 58% 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 8 TB NVMe
Higher than about 90% of the 2,058 comparable items (median 2 TB).

Specifications

Product
Year of release2026
Product typeBusiness Desktops & Workstations
Recommended useMainstream
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 storage8 TB NVMe
Hard drive10 TB
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsNvidia RTX A400
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 desktop include a monitor or do I need to buy one separately?

The system ships without a monitor; you will need to provide your own display. The box contains the tower, a 750 W power supply, Windows 11 Pro and all internal components pre-installed.

Which SSD configuration matches the 8 TB NVMe total listed in the title?

Two 4 TB Samsung 990 PRO M.2 drives are installed, giving a combined 8 TB of PCIe 4.0 NVMe storage with read speeds up to 7450 MB/s and write speeds up to 6900 MB/s.

What does the 12-core Ryzen 9 9900X at 4.4 GHz mean for everyday workstation tasks?

The 12-core processor runs at a 4.4 GHz base clock and can boost to 5.20 GHz, delivering strong multi-threaded performance for rendering, compilation and AI-ready workloads while the 240 mm liquid cooler keeps temperatures low.

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