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Black mid-tower with tempered glass side panel and ARGB fans

Adamant Custom

Adamant Custom Ryzen 9 9900X3D RTX 5090 192GB 4TB Gaming PC

SKU CH-S680-ABF5A

A 12-core Ryzen 9 9900X3D workstation with 192GB DDR5, 4TB NVMe SSD and an RTX 5090 32GB GPU in a liquid-cooled mid-tower running Windows 11 Pro

  • Release Year2026
  • TypeBusiness Desktops & Workstations
  • Form FactorMid Tower
  • AI FeaturesAI Ready
  • UsageWorkstation
  • ColorBlack
  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy workloads
  • RTX 5090 32 GB GPU powers AI learning and rendering
  • 192 GB DDR5 memory handles large datasets without swapping
  • 4 TB Samsung 990 PRO NVMe SSD reads up to 7450 MB/s
  • 1200 W 80 PLUS Gold PSU delivers stable power to all components

Workstation-grade gaming desktop

The Adamant Custom system pairs a 12-core AMD Ryzen 9 9900X3D processor with an Nvidia GeForce RTX 5090 graphics card. It ships with 192GB of DDR5 memory and a 4TB Samsung 990 PRO NVMe drive. Windows 11 Pro is pre-installed on a mid-tower chassis cooled by a 240mm liquid loop.

Suits AI and content workflows

Builders who need 192GB of unified memory for large-language-model inference, 3D rendering or multi-camera video editing will use every slot. The four DIMM sockets are fully populated, so there is no room for further memory expansion. Buyers who only game at 1080p or who want an upgrade path beyond 192GB should consider a different configuration.

Build integration notes

The Cooler Master HAF 500 case provides front-panel USB 3.2 Gen 2 Type-C and Gen 1 ports alongside a 2.5Gb Ethernet jack and Wi-Fi 7 connectivity. The motherboard adds two USB4 ports and four M.2 sockets, one of which is occupied by the boot drive. A 1200W 80 PLUS Gold power supply delivers headroom for the 32GB GPU and liquid cooler.

Highlights

  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy workloads
  • RTX 5090 32 GB GPU powers AI learning and rendering
  • 192 GB DDR5 memory handles large datasets without swapping
  • 4 TB Samsung 990 PRO NVMe SSD reads up to 7450 MB/s
  • 1200 W 80 PLUS Gold PSU delivers stable power to all components

Specifications

Release Year2026
TypeBusiness Desktops & Workstations
Form FactorMid Tower
AI FeaturesAI Ready
UsageWorkstation
ColorBlack
Cooling SystemLiquid Cooling
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeAMD Ryzen 9 9000 Series
CPU NameAMD Ryzen 9 9900X3D
CPU Socket TypeAM5
GPU/VGA TypeGeForce RTX 5090
Graphics InterfacePCI Express x16
Memory Capacity192GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD4TB NVMe
HDDNo
Optical Drive TypeNo
Screen SizeNo Screen
Audio ChipsetIntegrated
Audio Channels7.1 channels
LAN ChipsetIntegrated
LAN Speed2.5Gbps
WLAN802.11be Wireless LAN
WiFi GenerationWi-Fi 7
BluetoothBluetooth 5.4
RJ451 port

Questions about this item

Does the motherboard include a USB 20Gbps header so I can add a front-panel Type-C port?

The TUF X870-PLUS board provides one USB 20Gbps connector on the mid-board for that purpose.

Will my existing PCI Express x16 graphics card fit in the second slot if I keep the RTX 5090 as primary?

The motherboard has a single PCI Express x16 slot wired for the RTX 5090; there is no second full-length slot for another discrete GPU.

How can I confirm the Samsung 990 PRO is running at PCIe 4.0 x4 after setup?

Check the drive properties in Windows or the BIOS; the NVMe SSD should report a link width of x4 and a speed of 4.0 GT/s per lane.

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