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

Adamant Custom

Adamant Custom Ryzen 7 9800X3D 64GB 4TB NVMe 10TB RTX A400 business desktop

SKU CH-EAY4-AXNN8

An 8-core liquid-cooled workstation with 64 GB DDR5, 4 TB NVMe SSD, 10 TB HDD and an RTX A400 GPU for professional multi-display workflows

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 7 9000 Series
  • RAM capacity64 GB DDR5
  • SSD storage4 TB NVMe
  • GraphicsNvidia RTX A400
  • CPU modelAMD Ryzen 7 9800 × 3D
  • 8-core Ryzen 7 9800X3D with 96 MB L3 cache for heavy multitasking
  • 64 GB DDR5 memory expandable to 192 GB for large datasets
  • 4 TB NVMe SSD plus 10 TB HDD giving vast fast storage
  • Nvidia RTX A400 with four Mini DisplayPort outputs driving multiple monitors
  • Liquid CPU cooling and 850 W Bronze PSU for stable sustained loads

Liquid-cooled Ryzen 7 workstation

This business desktop ships with an 8-core AMD Ryzen 7 9800X3D processor, 64 GB DDR5 memory, a 4 TB NVMe SSD and a 10 TB hard drive. The Nvidia RTX A400 graphics card provides four Mini DisplayPort outputs for multi-monitor productivity. Windows 11 Pro 64-bit is pre-installed.

Sustained-load thermal behaviour

A 240 mm liquid cooler keeps the CPU near its 4.7 GHz base clock during extended compute tasks, while the case front fans move air across the motherboard and storage. The 850 W 80 PLUS Bronze power supply delivers stable output without throttling under continuous load.

Installation notes and common issues

The Antec P20 mid-tower arrives fully assembled; only peripheral cables and a monitor are required. Builders should verify that the four Mini DisplayPort connectors match their display inputs, as no adapters are included. The motherboard offers four M.2 slots, but all are occupied by the factory SSD configuration.

How it compares

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

Price $3,461.99
Cheaper than about 61% 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 useWorkstation
Product colorBlack
Processor
ProcessorAMD Ryzen 7 9000 Series
CPU modelAMD Ryzen 7 9800 × 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 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

How loud is the 240 mm liquid cooler and 140 mm PSU fan when the Ryzen 7 9800X3D runs at full load all day?

The CPU uses a 240 mm quiet-edition liquid cooler and the 850 W PSU has a 140 mm ultra-quiet fan, so noise stays low even during sustained workloads.

Which display cables must I already own to use the RTX A400 4 GB card?

The GPU provides four Mini DisplayPort outputs, so you need Mini DisplayPort cables or adapters for your monitors.

Can I keep my existing SATA SSDs or hard drives and install them alongside the 4 TB NVMe and 10 TB HDD?

Yes, the motherboard includes two SATA 6 Gb/s ports and the case has two 3.5"/2.5" internal bays for additional drives.

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