Thermaltake LCGS Reactor 9890S Gaming Desktop (AMD Ryzen™ 7 9800X3D, ToughRam 32GB DDR5 6000MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6WT-X870-590-LCS
Thermaltake

Thermaltake LCGS Reactor 9890S Gaming Desktop (AMD Ryzen™ 7 9800X3D, ToughRam 32GB DDR5 6000MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6WT-X870-590-LCS

$5699.99 4.5★ (2 reviews)

*Price sourced from Amazon.com. Last updated 2026-04-23. Price and availability subject to change.

What better way to power your battle station than the Reactor 9890S. 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 AMD Ryzen™ 7 9800X3D processor and the revolutionary RTX 5090 graphics card, this gaming behemoth delivers unmatched performance for an immersive gaming experience. With 32GB of high-speed 6000MT/s Memory and a massive 2TB NVMe SSD, say goodbye to load times and hello to instant action.

Key Features

  • AMD Ryzen 7 9800X3D CPU, AMD X870 Chipset motherboard, 32GB DDR5 6000MT/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

UPC840480300821
ASINB0FB1962M1
BrandThermaltake
ColorWhite
MaterialTempered Glass
Case TypeTower
Model NameReactor 9890S
ManufacturerThermaltake
Model NumberReactor 9890S
Built-In MediaRGB Lighting
Cooling MethodWater
Antenna LocationGaming
Customer Reviews4.54.5 out of 5 stars(2)4.5 out of 5 stars
Best Sellers Rank#136,877 in Electronics (See Top 100 in Electronics)#2,368 in Desktop Computers

Ready to buy?

Thermaltake LCGS Reactor 9890S Gaming Desktop (AMD Ryzen™ 7 9800X3D, ToughRam 32GB DDR5 6000MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6WT-X870-590-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.

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*Price sourced from Amazon.com. Last updated 2026-04-23. Price and availability subject to change.

As an Amazon Associate, SpecPicks earns from qualifying purchases. Prices accurate as of 2026-04-23 and subject to change.

$5699.99
4.5★ (2)
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