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Black Corsair 4000D mid-tower with tempered glass side panel and 240 mm liquid CPU cooler visible inside

Adamant Custom

Adamant Custom 12-Core Liquid Cooled Gaming PC Ryzen 9 9900X3D 64GB DDR5 2TB NVMe RTX 5070

SKU CH-ECYZ-MJFV4

Liquid-cooled 12-core Ryzen 9 9900X3D workstation with 64 GB DDR5, 2 TB NVMe and RTX 5070 graphics

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity64 GB DDR5
  • SSD storage2 TB NVMe
  • GraphicsGeForce RTX 5070
  • CPU modelAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy workloads
  • 240 mm liquid cooler keeps the CPU quiet under load
  • 64 GB DDR5 and 2 TB NVMe give fast memory and storage headroom
  • RTX 5070 12 GB handles modern games and creative apps
  • Wi-Fi 7 and 2.5 Gb Ethernet provide high-speed wired and wireless links

12-Core Liquid-Cooled Workstation

This Adamant Custom desktop pairs a 12-core AMD Ryzen 9 9900X3D processor with 64GB of DDR5 memory and a 2TB NVMe SSD. A 240mm liquid cooler manages CPU thermals while the GeForce RTX 5070 graphics card handles visual workloads. Windows 11 Pro is pre-installed on the system.

Suited to heavy multitasking and GPU compute

The 12-core CPU and 64GB memory capacity serve professionals running virtual machines, rendering pipelines or large datasets. The single RTX 5070 with 12GB VRAM limits buyers who need multi-GPU scaling or higher video memory for 8K workloads. Builders requiring more than two 3.5-inch drive bays should consider a larger chassis.

Sustained load behaviour

The 240mm AIO cooler and 850W Bronze-rated power supply are designed to maintain stable operation during extended rendering or compile sessions. The Corsair 4000D case provides airflow paths for the liquid radiator and GPU. Thermal throttling is mitigated by the cooler's 140mm fan and the motherboard's VRM heatsinks.

How it compares

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

Price $3,279.99
Pricier than about 64% of the 24,925 comparable items (median $2,694.99).
RAM capacity 64 GB DDR5
Higher than about 60% 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 typeBusiness Desktops & Workstations
Recommended useWorkstation
Product colorBlack
Processor
ProcessorAMD Ryzen 9 9000 Series
CPU modelAMD Ryzen 9 9900 × 3D
CPU socketAM5
Memory
RAM capacity64 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage2 TB NVMe
Hard driveNo
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsGeForce RTX 5070
GPU interfacePCI Express x16
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

Does this system ship with a monitor, keyboard, and mouse so it works out of the box?

No peripherals are included. You must supply your own display, keyboard, and mouse; the rear panel provides 2 USB4 Type-C, 1 USB 10 Gbps, 3 USB 5 Gbps, and 4 USB 2.0 ports for them.

Will my existing SATA SSDs or hard drives install inside the Corsair 4000D case?

Yes. The case has two 3.5-inch and two 2.5-inch internal bays, and the PRIME X870-P motherboard offers two SATA 6 Gb/s connectors for those drives.

How can I verify the liquid cooler is running after I power on the PC?

The 240 mm AIO uses a 140 mm fan; listen for its low-noise spin and check CPU temperatures in Windows 11 Pro — they should stay well below the 5.50 GHz boost ceiling under load.

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