We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black mid-tower desktop with 360mm ARGB liquid cooler visible through glass side panel

Thermaltake

Thermaltake T6BK-Z890-590-LCS Gaming PC Intel Core Ultra 9 285K 32GB DDR5 RTX 5090 32GB 2TB SSD

SKU CH-P4V1-2S0J4 MPN T6BK-Z890-590-LCS

A 24-core Intel Core Ultra 9 285K desktop with 32 GB DDR5 6400, 2 TB SSD, GeForce RTX 5090 32 GB GDDR7, 360 mm AIO cooling and a 1200 W 80Plus Gold ATX 3.0 supply

  • ProcessorIntel Core Ultra 9 (Series 2)
  • Memory size32 GB DDR5
  • Graphics memory32 GB GDDR7
  • Storage drive2 TB SSD
  • ChipsetIntel Z890
  • CPUIntel Core Ultra 9 285K
  • 24-core Intel Core Ultra 9 285K handles heavy multitasking with 36 MB L3 cache
  • 32 GB DDR5 6400 memory keeps data flowing for gaming and creative workloads
  • 2 TB NVMe SSD provides fast storage for large game libraries
  • RTX 5090 32 GB GDDR7 delivers high-frame-rate 4K gaming and AI acceleration
  • 360 mm ARGB AIO and 1200 W 80Plus Gold PSU sustain peak performance under load

Ready-to-Game Desktop with Intel Core Ultra 9 285K

This Thermaltake LCGS Reactor u2890 desktop ships with a 24-core Intel Core Ultra 9 285K processor, 32GB DDR5 6400 memory, and an NVIDIA GeForce RTX 5090 32GB GDDR7 graphics card. A 2TB NVMe SSD and Windows 11 Home are pre-installed. Liquid cooling and a 1200W 80Plus Gold ATX 3.0 power supply support the high-end components.

Suits 4K gamers and AI workloads.

The system targets enthusiasts who need maximum frame rates at 4K resolution and compute headroom for AI-ready tasks. The 360mm AIO cooler and full-size RTX 5090 demand a spacious ATX case with strong airflow. Buyers who want a small-form-factor PC or a lower-power workstation should look elsewhere.

Graphics card with 32GB GDDR7 VRAM

The GeForce RTX 5090 includes 32GB of GDDR7 video memory, a specification that determines whether the PC can hold large models or textures entirely on the GPU. If your workload fits within that VRAM limit, the card delivers the bandwidth needed; if it exceeds it, you will need a different configuration.

How it compares

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

Price $4,871.99
Pricier than about 85% of the 24,925 comparable items (median $2,694.99).
Memory size 32 GB DDR5
Typical for this category: the median of 11,703 items is 32 GB.
Graphics memory 32 GB GDDR7
Higher than about 91% of the 10,551 comparable items (median 16 GB).

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
Brand nameThermaltake
Model nameLCGS Reactor u2890
Part numberT6BK-Z890-590-LCS
Product typeGaming & Entertainment
Recommended useConsumer / Gaming
Product colorBlack
Processor
ProcessorIntel Core Ultra 9 (Series 2)
CPUIntel Core Ultra 9 285K
CPU modelIntel Core Ultra 9 285K
ChipsetIntel Z890
Processor cache36 MB L3 Cache
L2 cache per processor40 MB
L3 cache per CPU36 MB
Memory
Memory size32 GB DDR5
RAM capacity32 GB DDR5
RAM type and speedDDR5 6400
Max supported RAM128 GB
Storage
Storage drive2 TB SSD
SSD storage2 TB
Optical driveNo
Graphics
Graphics memory32 GB GDDR7
GraphicsGeForce RTX 5090
GPUNVIDIA GeForce RTX 5090 32 GB
VR readyYes
Audio & video
Sound channels7.1 channels
Connectivity
Wi-Fi standardWi-Fi 7
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Wi-Fi802.11be Wireless LAN
Bluetooth support5.4
Power
Power supply1200 W - 80Plus Gold ATX 3.0
Size & build
Shipping weight20.41 kg
Package size660 × 483 × 432 mm
Software
Operating systemWindows 11 Home
More details
AI capabilityAI Ready
Cooling methodThermaltake 360 mm ARGB AIO

Questions about this item

What clearance does the 360 mm ARGB AIO radiator need inside the case?

The 360 mm radiator requires a mounting location that can accept three 120 mm fans in a row, typically the front, top or rear of a mid-tower or larger chassis.

Which power connector must be attached to the RTX 5090 during installation?

Connect the 12VHPWR cable from the 1200 W 80Plus Gold ATX 3.0 power supply directly to the graphics card before closing the case.

How far can the DDR5 memory be upgraded later?

The Z890 motherboard supports up to 128 GB of DDR5 6400 memory across its four slots.

More in Gaming PCs

Similar items