Thermaltake LCGS Reactor u2890 Gaming Desktop (Intel® Core™ Ultra 9 285K, ToughRam 32GB DDR5 6400MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6BK-Z890-590-LCS
*Price sourced from Amazon.com. Last updated 2026-07-09. Price and availability subject to change.
Bottom line: The Thermaltake LCGS Reactor u2890 Gaming Desktop (Intel® Core™ Ultra 9 285K, ToughRam 32GB DDR5 6400MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6BK-Z890-590-LCS is a niche pick — read recent reviews before buying in the prebuilt gaming pcs category, priced around $3299.99. Read recent reviews carefully before committing.
What better way to power your battle station than the Reactor u2890. Its unique octagonal prism shape isn't just a statement piece; it's a testament to innovation, designed to offer superior cooling and performance. Powered by the formidable Intel® Core™ Ultra 9 285K processor and the revolutionary RTX 5090 graphics card, this gaming behemoth delivers unmatched performance for an immersive gaming experience. With 32GB of high-speed 6400MT/s Memory and a massive 2TB NVMe SSD, say goodbye to load times and hello to instant action.
SpecPicks Verdict
SpecPicks classifies Thermaltake LCGS Reactor u2890 Gaming Desktop (Intel® Core™ Ultra 9… as a niche pick — read recent reviews before buying in the prebuilt gaming pcs category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for prebuilt gaming pcs of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ NVIDIA GeForce RTX 5090, Display Port/HDMI
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Intel Core Ultra 9 285K CPU, Intel Z890 Chipset motherboard, 32GB DDR5 6400MT/s RGB, 2TB NVMe M.2, WiFi, Windows 11
- NVIDIA GeForce RTX 5090, Display Port/HDMI
- Enjoy Panoramic Views with 3mm TG Front panels and Excellent Airflow with Perforated Side Panels
- Closed Loop Liquid Cooling with 360mm Radiator
- Chassis I/O - 1x Type C, 2x USB 3.0, 1x Headphone, 1x Mic Ports
Full Specifications
| Brand | Thermaltake |
|---|---|
| Color | Black |
| RAM Type | DDR5 RAM |
| CPU Model | Intel Core i9 |
| CPU Speed | 3.7 GHz |
| Cache Size | 32 MB |
| Model Name | Reactor u2890 |
| Model Year | 2021 |
| Resolution | 3840 x 2160 |
| Style Name | 285KF | 5090 |
| Aspect Ratio | 16:9 |
| Connectivity | USB, WiFi |
| Display Type | LED |
| Memory Speed | 6400 MT/s |
Ready to buy?
Thermaltake LCGS Reactor u2890 Gaming Desktop (Intel® Core™ Ultra 9 285K, ToughRam 32GB DDR5 6400MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6BK-Z890-590-LCS is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-07-09. Price and availability subject to change.
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