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

Adamant Custom

Adamant Custom Intel Core Ultra 9 285K 24-Core Liquid Cooled 128GB DDR5 8TB NVMe gaming PC

SKU CH-E03K-JPHX2

A 24-core Intel Core Ultra 9 285K desktop with liquid cooling, 128GB DDR5 and 8TB NVMe storage, running Windows 11 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core Ultra 9 (Series 2)
  • RAM capacity128 GB DDR5
  • SSD storage8 TB NVMe
  • GraphicsIntegrated Graphics
  • CPU modelIntel Core Ultra 9 285K
  • 24-core Intel Core Ultra 9 285K delivers workstation-class multi-threaded performance
  • 128GB DDR5 high-performance memory handles large datasets and heavy multitasking
  • 8TB NVMe storage via dual Samsung 990 PRO drives reads up to 7450 MB/s
  • 360mm quiet-edition liquid cooler keeps the CPU cool under sustained loads
  • Wi-Fi 7 and Bluetooth 5.4 provide fast, low-latency wireless connectivity

System Purpose

The Adamant Custom tower is a liquid-cooled workstation desktop built around a 24-core Intel Core Ultra 9 285K processor and 128GB of DDR5 memory. It targets creators and professionals who need high multi-threaded throughput and large fast storage without a discrete graphics card.

Thermals Noise Power

A 360mm quiet-edition AIO cooler handles the CPU while four 140mm case fans run at 1500rpm and 30dBA each. The Thermaltake Smart 850W 80 PLUS Bronze supply delivers power with Japanese main capacitors and over-voltage, under-voltage, over-power and short-circuit protection.

Build Integration

The Ceres 300 mid-tower measures 475 x 245 x 463mm and offers one 3.5-inch or two 2.5-inch drive bays plus four M.2 slots on the Z890 TUF motherboard. Rear I/O includes Thunderbolt 4 Type-C, USB 20Gbps Type-C, three USB 10Gbps and three USB 5Gbps ports alongside Intel 2.5Gb Ethernet, Wi-Fi 7 and Bluetooth 5.4.

How it compares

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

Price $4,500.99
Pricier than about 82% 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 8 TB NVMe
Higher than about 99% of the 24,468 comparable items (median 2 TB).

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Specifications

Product
Year of release2026
Product colorBlack
Processor
ProcessorIntel Core Ultra 9 (Series 2)
CPU modelIntel Core Ultra 9 285K
CPU socketLGA 1851
Memory
RAM capacity128 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage8 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 factorTower
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 AIO liquid cooler, and which step is most often missed?

Mount the radiator to the case top or front using the included brackets, attach the pump block to the LGA 1851 socket with the supplied back-plate, then connect the pump header and fan headers to the Z890 motherboard; the step most often missed is plugging the pump into the dedicated AIO_PUMP header instead of a standard CPU_FAN header

What maintenance or replacement will the liquid cooler need later?

The sealed 360 mm AIO is maintenance-free for its service life; if pump noise or temperatures rise after several years, the entire cooler assembly must be replaced as the loop cannot be refilled

What limit appears first under sustained load on the Core Ultra 9 285K with this cooling?

The 24-core processor can reach 5.70 GHz boost, but prolonged all-core workloads will hit the thermal capacity of the 360 mm radiator first, causing clock speeds to settle below maximum turbo to keep temperatures in check

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