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

Adamant Custom

Adamant Custom Ryzen 9 9900X3D 128GB DDR5 4TB NVMe 10TB HDD Liquid Cooled Gaming PC

SKU CH-SACX-QWDN4

A 12-core Ryzen 9 9900X3D desktop with 128GB DDR5, 4TB NVMe plus 10TB HDD, and a 240mm liquid cooler

  • Release Year2026
  • Form FactorMid Tower
  • AI FeaturesAI Ready
  • ColorBlack
  • Cooling SystemLiquid Cooling
  • Operating SystemWindows 11 Pro
  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy multitasking
  • 128 GB DDR5 memory handles large datasets and parallel workloads
  • 4 TB NVMe SSD delivers 7450 MB/s reads for instant loading
  • 10 TB HDD adds 256 MB cache bulk storage for archives
  • 240 mm liquid cooler keeps CPU temperatures low under sustained load

Ready-to-run workstation

This system ships as a complete Windows 11 Pro desktop built around a 12-core Ryzen 9 9900X3D processor and 128 GB of DDR5 memory. Integrated Radeon graphics drive the display outputs so the machine is usable the moment it arrives. It targets creators and developers who need high core counts and large memory capacity without adding a discrete graphics card. Buyers who want more storage or a dedicated GPU for heavy 3D rendering should look elsewhere.

Thermals and power

A 240 mm quiet-edition liquid cooler handles the CPU while three 120 mm front fans and a 140 mm PSU fan move air through the Antec P20 mid-tower case. Dust filters on the bottom, front and top help keep internals clean during extended operation. The Thermaltake Smart 850 W 80 PLUS Bronze supply uses Japanese main capacitors and provides over-voltage, under-voltage, over-power and short-circuit protection. Noise stays low in typical workloads thanks to the quiet-edition cooler and ultra-quiet PSU fan.

Build and connectivity

The tempered-glass mid-tower measures 469 x 220 x 490 mm and offers two internal 3.5/2.5 inch bays plus two dedicated 2.5 inch bays. Rear I/O includes two USB4 40 Gbps Type-C ports, three USB 10 Gbps ports, four USB 5 Gbps ports and one USB 2.0 port. Internal headers add a USB 20 Gbps connector, a USB 5 Gbps header and two USB 2.0 headers alongside four M.2 slots and two SATA 6 Gbps connectors. Networking uses Intel 2.5 Gb Ethernet plus Wi-Fi 7 and Bluetooth 5.4 for wireless flexibility.

Highlights

  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy multitasking
  • 128 GB DDR5 memory handles large datasets and parallel workloads
  • 4 TB NVMe SSD delivers 7450 MB/s reads for instant loading
  • 10 TB HDD adds 256 MB cache bulk storage for archives
  • 240 mm liquid cooler keeps CPU temperatures low under sustained load

Specifications

Release Year2026
Form FactorMid Tower
AI FeaturesAI Ready
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 TypeIntegrated Graphics
Memory Capacity128GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD4TB NVMe
HDD10TB
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

How do I install the 240 mm liquid CPU cooler and what step do people often miss?

Mount the radiator to the case top or front using the supplied brackets, then attach the pump block to the AM5 socket with the pre-applied thermal paste; the step most people forget is connecting the pump power cable to the CPU_FAN header so the motherboard can monitor flow.

Which components in this PC are most likely to need replacement after several years of heavy use?

The 140 mm PSU fan and the three 120 mm front case fans are the only moving parts besides the pump; plan to replace those fans when noise or airflow drops, and consider swapping the AIO coolant after about five years.

What thermal or power limit appears first when the Ryzen 9 9900X3D runs sustained all-core workloads?

The 240 mm Quiet Edition AIO is rated for the CPU's 120 W base power; under prolonged all-core loads the coolant temperature rises until the fan curve hits its maximum, at which point the processor will throttle to stay within its thermal envelope.

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