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Black mid-tower gaming desktop with tempered glass side panel and RGB lighting visible inside

Skytech

Skytech ST-LEGACY4-1598-B-AL gaming PC, Ryzen 9 9950X3D, RTX 5090 32GB, 64GB DDR5 6000, 2TB NVMe

SKU CH-F6Z4-SA8NC MPN ST-LEGACY4-1598-B-AL

A gaming desktop with a Ryzen 9 9950X3D processor, RTX 5090 32GB GDDR7 graphics, 64GB DDR5 6000 memory and a 2TB NVMe Gen5 SSD, cooled by a 420mm AIO liquid cooler and powered by a 1200W supply.

  • CPU TypeAMD Ryzen 9 9000 Series
  • CPU NameAMD Ryzen 9 9950X3D
  • Installed Qty1
  • Max Supported Qty1
  • CPU Base Frequency4.3 GHz
  • Turbo Frequency5.7GHz

Option Antec P1 Performance Black / 9950X3D / 5090 / 64G / 2T

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  • Lian-Li O11 Vision Black / 9900X3D / 5080 / 64G / 2T
  • Lian-Li O11 Vision Black / 9900X3D / 5080 / 64G / 4T
  • Antec P1 Performance Black / 9900X3D / 5090 / 64G / 4T
  • Antec P1 Performance Black / 9900X3D / 5090 / 64G / 2T
  • Antec P1 Performance Black / 9950X3D / 5090 / 64G / 2T

Struck-through versions exist but are not stocked here.

  • Ryzen 9 9950X3D reaches 5.7 GHz turbo for peak gaming frames
  • RTX 5090 32GB GDDR7 drives 4K ray-traced visuals at high refresh
  • 64GB DDR5 6000 memory keeps heavy multitasking smooth
  • 2TB NVMe Gen5 SSD loads games and assets in seconds
  • 420mm AIO liquid cooler sustains CPU clocks under prolonged loads

Skytech Legacy 9950X3D RTX 5090 system

This pre-built desktop pairs an AMD Ryzen 9 9950X3D processor with an NVIDIA GeForce RTX 5090 graphics card. It targets enthusiasts who want maximum single-thread and multi-thread performance for 4K gaming and heavy content creation without assembling parts themselves. The system ships with Windows 11 Home installed and ready to use.

64GB DDR5 6000 RGB memory and 2TB Gen5 NVMe SSD

The 64GB DDR5 6000 kit with RGB heat spreaders fills two of four slots, leaving room for future expansion. A 2TB NVMe Gen5 drive provides fast boot and load times for large game libraries. A 420mm AIO liquid cooler with ARGB fans handles the CPU thermal load, while the 1200W ATX 3.0 Gold power supply delivers stable power to the GPU and CPU.

Suited for 4K gamers and AI workloads needing 32GB

Buyers who need 32GB of GDDR7 video memory for large language models or high-resolution texture packs will benefit. Those who require more than 2TB of primary storage or prefer air cooling over a 420mm liquid loop should consider other configurations. The motherboard uses the AMD X870 chipset with AM5 socket.

Highlights

  • Ryzen 9 9950X3D reaches 5.7 GHz turbo for peak gaming frames
  • RTX 5090 32GB GDDR7 drives 4K ray-traced visuals at high refresh
  • 64GB DDR5 6000 memory keeps heavy multitasking smooth
  • 2TB NVMe Gen5 SSD loads games and assets in seconds
  • 420mm AIO liquid cooler sustains CPU clocks under prolonged loads

Specifications

CPU TypeAMD Ryzen 9 9000 Series
CPU NameAMD Ryzen 9 9950X3D
Installed Qty1
Max Supported Qty1
CPU Base Frequency4.3 GHz
Turbo Frequency5.7GHz
CPU Socket TypeAM5
GPU/VGA TypeGeForce RTX 5090
Virtual Reality ReadyYes
Memory Capacity64GB DDR5
Memory SpeedDDR5 6000
Memory Slots (Available/Total)2/4
SSD2TB NVMe
HDDNo
Operating SystemWindows 11 Home
Power Supply1200W
TypeGaming & Entertainment
Release Year2025
AI FeaturesAI Ready
UsageConsumer
ColorBlack
Memory64GB DDR5
Storage2TB NVMe
Cooling SystemLiquid Cooling
Windows 11Ready
BrandSkytech
ModelSTT-LEGACY4-1598V2-C01-*-**
ChipsetAMD X870
Screen SizeNo Screen
Shipping weight23.59 kg
Package size660 × 610 × 381 mm

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What replacement interval is recommended for the 420mm AIO liquid cooler on the Ryzen 9 9950X3D?

The 420mm AIO is a sealed unit; no user-serviceable fluid replacement is required under normal operation.

Which component hits its thermal limit first when the RTX 5090 32GB and Ryzen 9 9950X3D run at full load for hours?

The GPU and CPU each manage their own boost curves; the 1200W power supply and 420mm AIO are sized to keep both within spec during sustained workloads.

How loud and hot does the system get when the 1200W PSU and 420mm AIO run all day under load?

The 420mm AIO and 1200W Gold ATX 3.0 PSU are built for continuous delivery; fan speeds scale with temperature to balance acoustics and thermals.

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