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Adamant Custom

Adamant Custom Ryzen 9 9900X3D 128GB DDR5 2TB NVMe gaming PC

SKU CH-D22E-P2790

A 12-core liquid-cooled desktop with 128 GB DDR5 and a 2 TB NVMe drive, ready for AI workloads and Windows 11 Pro

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity128 GB DDR5
  • SSD storage2 TB NVMe
  • GraphicsIntegrated Graphics
  • CPU modelAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy workloads
  • 128 GB DDR5 memory handles large datasets and multitasking
  • 2 TB Samsung 990 PRO NVMe delivers 7450 MB/s read speed
  • 360 mm liquid cooler keeps CPU temperatures low under load
  • Wi-Fi 7 and Bluetooth 5.4 provide fast wireless connectivity

Adamant Custom 12-Core Ryzen Workstation

This new Adamant Custom desktop ships with a 12-core AMD Ryzen 9 9900X3D processor running at 4.3 GHz with up to 5.50 GHz boost and 128 MB L3 cache. It includes 128 GB of DDR5 memory across four slots, a 2 TB Samsung 990 PRO NVMe SSD delivering up to 7450 MB/s read and 6900 MB/s write, and integrated AMD Radeon graphics with HDMI and dual USB4 outputs. Windows 11 Pro 64-bit is pre-installed.

360 mm Liquid Cooling and 850 W Bronze PSU

A 360 mm Quiet Edition AIO liquid cooler handles the CPU while two 140 mm PWM front fans move air through the tempered-glass case. The Thermaltake Smart 850 W 80 PLUS Bronze power supply uses Japanese main capacitors and a 140 mm fan rated for low noise, with over-voltage, under-voltage, over-power and short-circuit protection. Integrated 7.1-channel audio, Intel 2.5 Gb Ethernet, Wi-Fi 7 and Bluetooth 5.4 complete the platform.

Sustained Load on Integrated Graphics

Under continuous workloads the 12-core CPU and integrated Radeon graphics share the same thermal envelope, so prolonged compute or media tasks will raise coolant temperature until the radiator and front fans reach equilibrium. The 850 W Bronze unit provides headroom for the CPU, memory, SSD and four M.2 slots, but the lack of a discrete GPU limits 3D rendering and gaming performance compared with systems that include one. Buyers needing dedicated graphics acceleration should consider a different configuration.

How it compares

Measured against everything we stock in Gaming PCs, at today’s prices. Recalculated every night.

Price $3,911.99
Pricier than about 75% of the 24,925 comparable items (median $2,694.99).
RAM capacity 128 GB DDR5
Higher than about 80% of the 24,338 comparable items (median 32 GB).
SSD storage 2 TB NVMe
Typical for this category: the median of 24,468 items is 2 TB.

New to this? Buying a gaming PC with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Year of release2026
Product colorBlack
Processor
ProcessorAMD Ryzen 9 9000 Series
CPU modelAMD Ryzen 9 9900 × 3D
CPU socketAM5
Memory
RAM capacity128 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage2 TB NVMe
Hard driveNo
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsIntegrated Graphics
Audio & video
Audio chipIntegrated
Sound channels7.1 channels
Connectivity
Wi-Fi standardWi-Fi 7
Network speed2.5 Gbit/s
Ethernet controllerIntegrated
Wi-Fi802.11be Wireless LAN
Bluetooth support5.4
Ports & slots
Ethernet port1 port
Size & build
Form factorDesktop
Compatibility
Windows 11 supportReady
Software
Operating systemWindows 11 Pro
More details
AI capabilityAI Ready
Cooling methodLiquid Cooling

Questions about this item

How do I install the 360 mm liquid cooler on the AM5 socket, and which mounting step do people miss?

The 360 mm AIO arrives pre-filled; secure the AM5 bracket with the four spring screws in a diagonal pattern, then connect the pump header and the 140 mm fan PWM cables — the step most builders skip is plugging the pump into the dedicated AIO_PUMP header so it runs at full speed.

What maintenance or replacement will the 2 TB Samsung 990 PRO NVMe SSD need later?

The drive has no moving parts; keep 10–15 % free space and update firmware via Samsung Magician when a new version appears — no scheduled replacement is required under normal desktop workloads.

What limit appears first during sustained all-core loads on the Ryzen 9 9900X3D with this 360 mm cooler?

The CPU will hit its 5.50 GHz boost ceiling and then throttle to maintain the 128 MB L3 cache thermal envelope; the 360 mm radiator and 140 mm fans keep temperatures in check, so the silicon limit arrives before the cooling capacity.

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