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

Adamant Custom

Adamant Custom Ryzen 7 9800X3D 192GB DDR5 4TB NVMe 10TB HDD RTX A400 business desktop

SKU CH-5EGH-H76ZE

An 8-core Ryzen workstation with 192GB DDR5, 4TB NVMe and 10TB HDD, liquid-cooled with an RTX A400 for professional visualisation

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 7 9000 Series
  • RAM capacity192 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 handles heavy workloads
  • 192 GB DDR5 memory supports large datasets and multitasking
  • 4 TB NVMe SSD plus 10 TB HDD provides fast and ample storage
  • RTX A400 4 GB with four MiniDP outputs drives multiple displays
  • Liquid cooling and 850 W Bronze PSU deliver stable, quiet operation

Workstation CPU and Memory

This business desktop is built around an 8-core AMD Ryzen 7 9800X3D processor with a 4.7 GHz base clock and 96 MB L3 cache. It ships with 192 GB of DDR5 memory, reaching the motherboard's maximum supported capacity. The system targets professionals who need high single-thread speed and large memory bandwidth for simulation, rendering or data-analysis workloads.

Motherboard Connectivity and Power

The PRIME X870-P motherboard provides rear USB4 ports at 40 Gbps, additional USB 10 Gbps and 5 Gbps ports, plus four M.2 slots for future expansion. A Thermaltake Smart 850 W 80 PLUS Bronze power supply delivers power to the CPU, an Nvidia RTX A400 graphics card with four Mini DisplayPort outputs, and all storage drives. The case includes front-panel USB 3.2 Gen 2 Type-C and USB 3.0 ports.

Storage Upgrade Path

Primary storage is a 4 TB Samsung 990 PRO NVMe drive with sequential reads up to 7 450 MB/s and writes up to 6 900 MB/s. A 10 TB hard drive with 256 MB cache adds bulk capacity. Builders who need more high-speed NVMe volumes can use the three remaining M.2 slots, while the two internal 3.5-inch bays accept additional hard drives for archival growth.

How it compares

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

Price $4,807.99
Cheaper than about 54% of the 2,161 comparable items (median $5,687.99).
RAM capacity 192 GB DDR5
Higher than about 80% 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 useWorkstation
Product colorBlack
Processor
ProcessorAMD Ryzen 7 9000 Series
CPU modelAMD Ryzen 7 9800 × 3D
CPU socketAM5
Memory
RAM capacity192 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

Does the system ship with a monitor, keyboard or mouse, or do I need to buy them separately?

The desktop is sold without a monitor, keyboard or mouse; those peripherals must be purchased separately.

Is the 192 GB DDR5 the maximum the motherboard can take, or can I add more later?

The PRIME X870-P board supports a maximum of 192 GB, so the installed memory already fills every slot and cannot be expanded.

What real-world throughput can I expect from the 4 TB Samsung 990 PRO when it is installed in the PCIe 4.0 M.2 slot?

The drive is rated for sequential reads up to 7,450 MB/s and writes up to 6,900 MB/s over the PCIe 4.0 x4 interface.

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